From 4c96f43016f1a69e6ad6217b48dda6a337f4fcc3 Mon Sep 17 00:00:00 2001
From: mrudhvika940 <mrudhvikadamaraju@gmail.com>
Date: Mon, 23 Mar 2020 00:50:27 +0530
Subject: [PATCH 01/22] updated header

---
 src/lab/Courses Aligned.html        | 123 ++++++++---------
 src/lab/Feedback.html               | 123 ++++++++---------
 src/lab/Introduction.html           | 123 ++++++++---------
 src/lab/List of experiments.html    | 143 ++++++++++---------
 src/lab/Prerequisites.html          | 129 +++++++++---------
 src/lab/Target Audience.html        | 125 +++++++++--------
 src/lab/exp1/Experiment.html        |  92 +++++++------
 src/lab/exp1/Feedback.html          |  93 +++++++------
 src/lab/exp1/Further Readings.html  |  85 ++++++------
 src/lab/exp1/Introduction.html      | 140 ++++++++++---------
 src/lab/exp1/Manual.html            |  92 +++++++------
 src/lab/exp1/Objective.html         |  90 ++++++------
 src/lab/exp1/Procedure.html         |  93 +++++++------
 src/lab/exp1/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp1/Theory.html            | 128 ++++++++---------
 src/lab/exp10/Experiment.html       |  92 +++++++------
 src/lab/exp10/Feedback.html         |  92 +++++++------
 src/lab/exp10/Further Readings.html |  90 ++++++------
 src/lab/exp10/Introduction.html     | 150 ++++++++++----------
 src/lab/exp10/Manual.html           |  93 +++++++------
 src/lab/exp10/Objective.html        |  92 +++++++------
 src/lab/exp10/Procedure.html        |  92 +++++++------
 src/lab/exp10/Quizzes.html          | 196 +++++++++++++-------------
 src/lab/exp10/Theory.html           | 100 +++++++-------
 src/lab/exp2/Experiment.html        |  92 +++++++------
 src/lab/exp2/Feedback.html          |  92 +++++++------
 src/lab/exp2/Further Readings.html  |  90 ++++++------
 src/lab/exp2/Introduction.html      | 144 ++++++++++----------
 src/lab/exp2/Manual.html            |  92 +++++++------
 src/lab/exp2/Objective.html         |  92 +++++++------
 src/lab/exp2/Procedure.html         |  92 +++++++------
 src/lab/exp2/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp2/Theory.html            | 122 +++++++++--------
 src/lab/exp4/Experiment.html        |  92 +++++++------
 src/lab/exp4/Feedback.html          |  92 +++++++------
 src/lab/exp4/Further Readings.html  |  90 ++++++------
 src/lab/exp4/Introduction.html      | 146 ++++++++++----------
 src/lab/exp4/Manual.html            |  92 +++++++------
 src/lab/exp4/Objective.html         |  92 +++++++------
 src/lab/exp4/Procedure.html         |  92 +++++++------
 src/lab/exp4/Quizzes.html           | 197 ++++++++++++++-------------
 src/lab/exp4/Theory.html            | 204 ++++++++++++++--------------
 src/lab/exp5/Experiment.html        |  92 +++++++------
 src/lab/exp5/Feedback.html          |  92 +++++++------
 src/lab/exp5/Further Readings.html  |  90 ++++++------
 src/lab/exp5/Introduction.html      | 144 ++++++++++----------
 src/lab/exp5/Manual.html            |  93 +++++++------
 src/lab/exp5/Objective.html         |  92 +++++++------
 src/lab/exp5/Procedure.html         |  92 +++++++------
 src/lab/exp5/Quizzes.html           | 194 +++++++++++++-------------
 src/lab/exp5/Theory.html            | 126 +++++++++--------
 src/lab/exp6/Experiment.html        |  92 +++++++------
 src/lab/exp6/Feedback.html          |  92 +++++++------
 src/lab/exp6/Further Readings.html  |  90 ++++++------
 src/lab/exp6/Introduction.html      | 144 ++++++++++----------
 src/lab/exp6/Manual.html            |  92 +++++++------
 src/lab/exp6/Objective.html         |  90 ++++++------
 src/lab/exp6/Procedure.html         |  92 +++++++------
 src/lab/exp6/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp6/Theory.html            | 124 +++++++++--------
 src/lab/exp7/Experiment.html        |  92 +++++++------
 src/lab/exp7/Feedback.html          |  90 ++++++------
 src/lab/exp7/Further Readings.html  |  90 ++++++------
 src/lab/exp7/Introduction.html      | 142 +++++++++----------
 src/lab/exp7/Manual.html            |  92 +++++++------
 src/lab/exp7/Objective.html         |  92 +++++++------
 src/lab/exp7/Procedure.html         |  92 +++++++------
 src/lab/exp7/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp7/Theory.html            | 106 ++++++++-------
 src/lab/exp8/Experiment.html        |  92 +++++++------
 src/lab/exp8/Feedback.html          |  92 +++++++------
 src/lab/exp8/Further Readings.html  |  90 ++++++------
 src/lab/exp8/Introduction.html      | 140 ++++++++++---------
 src/lab/exp8/Manual.html            |  92 +++++++------
 src/lab/exp8/Objective.html         |  92 +++++++------
 src/lab/exp8/Procedure.html         |  92 +++++++------
 src/lab/exp8/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp8/Theory.html            |  96 +++++++------
 src/lab/exp9/Experiment.html        |  92 +++++++------
 src/lab/exp9/Feedback.html          |  92 +++++++------
 src/lab/exp9/Further Readings.html  |  90 ++++++------
 src/lab/exp9/Introduction.html      | 142 +++++++++----------
 src/lab/exp9/Manual.html            |  92 +++++++------
 src/lab/exp9/Objective.html         |  92 +++++++------
 src/lab/exp9/Procedure.html         |  93 +++++++------
 src/lab/exp9/Quizzes.html           | 196 +++++++++++++-------------
 src/lab/exp9/Theory.html            | 112 +++++++--------
 87 files changed, 5173 insertions(+), 4710 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 1fbe8f4d..c02f9f23 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
+			                    <!--<li class="page-scroll menu-li menu-li-active">
 			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
-			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+			                    </li>-->
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,27 +82,27 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br><p> The present lab is aligned with courses such as Introduction to Data Structures, Data Structures in C/C++, and the like. The experiments touch on most topics covered in such courses in most curricula. </p>
+<br/><p> The present lab is aligned with courses such as Introduction to Data Structures, Data Structures in C/C++, and the like. The experiments touch on most topics covered in such courses in most curricula. </p>
 </div>						</div>
 					</div>
 			</div>
@@ -112,52 +115,45 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
+				height: 38px"/></a>
 
 			</div>
 
@@ -168,10 +164,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -222,4 +218,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index e44f78cc..9f466514 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
-			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+			                   <!-- <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    </li>-->
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,21 +82,21 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://feedback.vlabs.ac.in/"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -109,51 +112,44 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><a href="http://feedback.v
 	</div> <!-- content div -->
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
 				height: 38px"/></a>
 
 			</div>
@@ -165,10 +161,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -219,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 58b94324..75d34b01 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,27 +82,27 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br>
+<br/>
 <p>
 		Welcome to the Problem Solving Virtual Lab developed at IIIT Hyderabad. The interactive experiments in this lab will give the students an opportunity for learning and better understanding of using computer programming as a tool to solve basic to advanced problems.
 	  </p>
@@ -115,52 +118,45 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
+				height: 38px"/></a>
 
 			</div>
 
@@ -171,10 +167,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -225,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 086545eb..bdba5178 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,67 +82,67 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br>
+<br/>
 <ul id="list-of-experiments">
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp1/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Numerical Representation</a>
+<a href="exp1/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Numerical Representation</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp2/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Beauty of Numbers</a>
+<a href="exp2/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Beauty of Numbers</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp3/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">More on Numbers</a>
+<a href="exp3/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">More on Numbers</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp4/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Factorials</a>
+<a href="exp4/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Factorials</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp5/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">String Operations</a>
+<a href="exp5/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">String Operations</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp6/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Recursion</a>
+<a href="exp6/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Recursion</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp7/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Advanced Arithmatic</a>
+<a href="exp7/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Advanced Arithmatic</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp8/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Searching and Sorting</a>
+<a href="exp8/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Searching and Sorting</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp9/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Permutation</a>
+<a href="exp9/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Permutation</a>
 </li>
 <li>
 <!--Link and name of the experiment 1 -->
-<a href="exp10/Introduction.html?domain=Computer Science&lab=Problem Solving Lab">Sequences</a>
+<a href="exp10/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Sequences</a>
 </li>
 </ul>
 </div>						</div>
@@ -154,52 +157,45 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
+				height: 38px"/></a>
 
 			</div>
 
@@ -209,10 +205,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -263,4 +259,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index 081b4c11..e16d0014 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,32 +82,32 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html/"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br>
+<br/>
 <p>
-<ul>
+</p><ul>
 <li>Java Runtime Environment allows you to play online virtual labs.</li>
 </ul>
-</p>
+<p></p>
 </div>						</div>
 					</div>
 			</div>
@@ -117,52 +120,45 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
+				height: 38px"/></a>
 
 			</div>
 
@@ -172,10 +168,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -226,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index 91251e57..678bbc4a 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,27 +82,27 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
+<br/><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
 	  </p>
 </div>						</div>
 					</div>
@@ -113,52 +116,45 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
+			<div class="col-md-3 border-right-green-dotted" id="contact">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
+				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
+				height: 38px"/></a>
 
 			</div>
 
@@ -169,10 +165,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -223,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 5d6c9c31..10589036 100644
--- a/src/lab/exp1/Experiment.html
+++ b/src/lab/exp1/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -113,12 +118,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
 
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 
 			</div>
 
@@ -127,11 +132,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -139,18 +144,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -216,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index df137864..bac2f702 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,16 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->
+	                                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +85,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +114,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><a href="http://209.2
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +127,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +139,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +216,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index fd234178..c5d5d6c7 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
 			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 48ddcbfb..538030c2 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,78 +84,78 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
-<br>
+<br/>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br><r>
- <p><b>Input Specification</b></p><br>
+<br/><r>
+ <p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 4<br>
-Output:3<br>
-Input: 16 <br>
-Output: 5<br>
+Input: 4<br/>
+Output:3<br/>
+Input: 16 <br/>
+Output: 5<br/>
 </p>
 <p align="right"></p>
-<br><hr>
+<br/><hr/>
 
 <h2>Problem 2:</h2>
 <p> 
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 3 A B C AC <br>
-Output: 4<br>
-Input: 3 A B C BC<br>
-Output: 6<br>
+Input: 3 A B C AC <br/>
+Output: 4<br/>
+Input: 3 A B C BC<br/>
+Output: 6<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br>  </r></div>						</div>
+<br/><hr/>
+<br/><br/>  </r></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -164,12 +169,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -177,11 +182,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -189,18 +194,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
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 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -266,4 +271,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index 999d227b..28e2accc 100644
--- a/src/lab/exp1/Manual.html
+++ b/src/lab/exp1/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,14 +130,14 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 			<!--	<a href="http://118.102.191.38/feedback/Registration.html"
 			class="text-a-lightgreen"
 			style="text-decoration: underline;"
 			> Nodal Center</a> -->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -140,18 +145,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -217,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index ebdc788d..54f95823 100644
--- a/src/lab/exp1/Objective.html
+++ b/src/lab/exp1/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
 			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,15 +130,15 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!-- <a href="http://118.102.191.38/feedback/Registration.html"
 				class="text-a-lightgreen"
 				style="text-decoration:
 				underline;" > Nodal
 				Center</a> -->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -141,18 +146,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index 8ca2e228..faa74183 100644
--- a/src/lab/exp1/Procedure.html
+++ b/src/lab/exp1/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,4 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
\ No newline at end of file
+</body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quizzes.html
index 2841f178..92d346ab 100644
--- a/src/lab/exp1/Quizzes.html
+++ b/src/lab/exp1/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,15 +342,15 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 <!--				<a href="http://118.102.191.38/feedback/Registration.html"
 				class="text-a-lightgreen"
 				style="text-decoration:
 				underline;" > Nodal
 				Center</a> -->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -353,18 +358,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -432,4 +437,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index 94831604..e7ad2e8b 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,57 +84,57 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
 etc.
-<br><br>
+<br/><br/>
 
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
-<br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
+<br/>
 </p>
 
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 Lets start with an example. Consider the sample input, the given characters are A,B,C and the input string is AC. Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B, right?
 Thus, the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC. But luckily we have initial letter as A. Now the 1<sup>st</sup> character is 'C' , thus we need to count all the strings which start with AB. If instead of 'C' there was a D, then we would have to count the number of strings starting with AB, AC. In this manner we proceed adding the requisite number of strings to our result.
 </p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -143,12 +148,12 @@ <h2>Problem 2</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -156,11 +161,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -168,18 +173,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -245,4 +250,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index 4dd70e1e..cbd380d6 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index 97379961..b7fa6e72 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><a href="http://209.211.220.205/feed
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index 648c5d9e..f0ff292c 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index e77400d0..a1c6e629 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,85 +84,85 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 In this experiment we introduce you to two very famous algorithmic problems.One problem is longest continuous decreasing subsequence problem and other one is longest increasing subsequence problem.
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
-<br>
+<br/>
 <p> 
 Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.
 </p>
 <p>
 Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”, then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus, the answer to be printed out for the length of ”10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5 4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file. Each integer is &lt;= 10<sup>9</sup>  and the length of the input sequence is &lt;= 10<sup>7</sup>.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Print the length of the longest continuous decreasing subsequence.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 2 1 9 8 10 7 5 4 3 1 10 <br>
-Output:6<br>
-Input: 1 2 3 4 5 6 7 8<br>
-Output: 1<br>
+Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
+Output:6<br/>
+Input: 1 2 3 4 5 6 7 8<br/>
+Output: 1<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
-<br>
+<br/>
 <p> 
 Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey).
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain two lines. The first line contains the number of integers in the sequence, N(&lt;=1000) and the next line contains N positive integers (each &lt;=10<sup>9</sup>).
 
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Print the length of the longest increasing subsequence of the given input sequence.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 10<br>
-1 2 9 4 7 3 11 8 14 6<br>
-Output:6<br>
-Input: 6 <br>
-1 3 2 10 4 5<br>
-Output: 4<br>
+Input: 10<br/>
+1 2 9 4 7 3 11 8 14 6<br/>
+Output:6<br/>
+Input: 6 <br/>
+1 3 2 10 4 5<br/>
+Output: 4<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -171,12 +176,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -184,11 +189,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -196,18 +201,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -273,4 +278,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
index 879826db..3819f1e7 100644
--- a/src/lab/exp10/Manual.html
+++ b/src/lab/exp10/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
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-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,4 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
\ No newline at end of file
+</body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
index 267d6a3a..94aae96b 100644
--- a/src/lab/exp10/Objective.html
+++ b/src/lab/exp10/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
index cf5f3332..0c4115bf 100644
--- a/src/lab/exp10/Procedure.html
+++ b/src/lab/exp10/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -122,12 +127,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -135,11 +140,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -147,18 +152,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -225,4 +230,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quizzes.html
index 4ff203c9..642ebf5e 100644
--- a/src/lab/exp10/Quizzes.html
+++ b/src/lab/exp10/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -428,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index 7d2e0454..a0740152 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,31 +84,31 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just need to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the currrent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the previous number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 This is a very famous problem. It's known as longest increasing subsequence problem.Let us consider a naive approach of solving this problem. For every subsequence if it is a increasing subsequence we try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity of this appraoch it is clear that it is goin to take 2<sup>N</sup>*N operations. So, if N = 30, this approach would take 32212254720 (~3*10<sup>11</sup>) operations. Looking at the constraints it is obvious that this algorithm is not feasible. Now we look at the standard solution. You may refer wikipedia for the same.  
 </p>
@@ -118,7 +123,7 @@ <h3>Recursive formulation </h3>
 <b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </p>
 <p align="right"></p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -132,12 +137,12 @@ <h3>Recursive formulation </h3>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -145,11 +150,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -157,18 +162,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
  		</div>
@@ -233,4 +238,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index e6219a5b..326bed12 100644
--- a/src/lab/exp2/Experiment.html
+++ b/src/lab/exp2/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,17 +142,17 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 	<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -213,4 +218,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index e1c6b8cd..52d0632a 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><a href="http://209.211.220.
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -209,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index b9d3a489..d03aaa9e 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
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 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index d936a5ff..d0fb2bdf 100644
--- a/src/lab/exp2/Introduction.html
+++ b/src/lab/exp2/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,81 +84,81 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 Many students in some class or either might have been interested in Number theory as it is
 so much fun in solving those riddles.Here we present two problems to refresh your skills.
 Hope you will love them.And yea the difference is that you may not have learnt computer programming
 back then but you know some computer programming now  so you can use the computer :) and program the task. 
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p> 
 A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test, whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its proper positive divisors and 1 + 2 + 3 = 6.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single positive integer(&lt; 10<sup>10</sup>). Use long long for the number.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
-<br><hr>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
+<br/><hr/>
 <p>
-Input: 28<br>
-Output: YES<br>
-Input: 16<br>
-Output: NO<br>
-<br></p>
-<br>
+Input: 28<br/>
+Output: YES<br/>
+Input: 16<br/>
+Output: NO<br/>
+<br/></p>
+<br/>
 <p align="right"></p>
 <h2>Problem 2:</h2>
 <p> 
 Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a non-negative integer and E is either the number 1 or an expression of the same form as above. We call such an expression a continued fraction. For eg., 239/51 is equivalent to 239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1)))))) Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2 ) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains 2 positive integers separated by a space.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
 must be  separated by spaces.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 239 51 <br>
-Output: 4 1 2 5 2<br>
-Input: 27 10<br>
-Output: 2 1 2 2<br>
+Input: 239 51 <br/>
+Output: 4 1 2 5 2<br/>
+Input: 27 10<br/>
+Output: 2 1 2 2<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -167,12 +172,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -180,11 +185,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -192,18 +197,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -270,4 +275,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index 9a15006a..95c5648e 100644
--- a/src/lab/exp2/Manual.html
+++ b/src/lab/exp2/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index bca4faa6..e452225e 100644
--- a/src/lab/exp2/Objective.html
+++ b/src/lab/exp2/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 		<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 84714e0f..916523e9 100644
--- a/src/lab/exp2/Procedure.html
+++ b/src/lab/exp2/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -122,12 +127,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -135,11 +140,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -147,18 +152,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -225,4 +230,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
index 7a3cbe16..cf315b60 100644
--- a/src/lab/exp2/Quizzes.html
+++ b/src/lab/exp2/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
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 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -429,4 +434,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index fef1dc12..42327e2b 100644
--- a/src/lab/exp2/Theory.html
+++ b/src/lab/exp2/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
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+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,23 +84,23 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Beauty of Numbers</h1>
-<br><div class="content" id="experiment-article-section-2-content">
+<br/><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 P is divisor of Q, if dividing Q by P does not leave any remainder. A number, N, is called a perfect number, if the sum of all such divisors of N(not including N) is equal to N. 6 is the smallest perfect number. It's factors are 1,2,3 and their sum is 1+2+3=6. So, to check whether a number, say N, is perfect or not, it is required to find all the divisors of that number. The easiest way to do this is to check every number form 2 to N-1 if it is dividing N completely or not, and take the sum of all the divisor. While this may work well for small numbers, it would be very time consuming for large numbers.
@@ -104,29 +109,29 @@ <h2>Problem 1</h2>
 A better solutin can be built by observing that many numbers can easily be ruled out as not divisors. For instance, all the numbers between N/2 and N cannot be divisors. Similarly, all numbers between N/2 and N/3 cannot be divisors of N, and so on. So, at each step we can check two numbers to be divisors of N and at the same time we can eliminate a fraction of the numbers less than N as not divisors and putting an upper bound on the next biggest possible divisor. Lets apply this tactic to find the divisors of 60.
 </p>
 <p>
-60 divided by 2 gives 30 as the quotient and 0 as the remainder. So, 2 and 30 are divisors and there are no other divisors greater than 30. SUM=32+1=33 <br>
-60 divided by 3 gives 20 as the quotient and 0 as the remainder. So, 3 and 20 are divisors and there are no other divisors greater than 20. SUM=33+23=46<br>
-60 divided by 4 gives 15 as the quotient and 0 as the remainder. So, 4 and 15 are divisors and there are no other divisors greater than 15. SUM=46+19=65<br>
-60 divided by 5 gives 12 as the quotient and 0 as the remainder. So, 5 and 12 are divisors and there are no other divisors greater than 12. SUM=65+17=82<br>
-60 divided by 6 gives 10 as the quotient and 0 as the remainder. So, 6 and 10 are divisors and there are no other divisors greater than 10. SUM=82+16=98<br>
-60 divided by 7 gives 8 as the quotient and 4 as the remainder. So, 7 is not a divisor and there are no other divisors greater than or equal to 8.<br>
-<br><br>
+60 divided by 2 gives 30 as the quotient and 0 as the remainder. So, 2 and 30 are divisors and there are no other divisors greater than 30. SUM=32+1=33 <br/>
+60 divided by 3 gives 20 as the quotient and 0 as the remainder. So, 3 and 20 are divisors and there are no other divisors greater than 20. SUM=33+23=46<br/>
+60 divided by 4 gives 15 as the quotient and 0 as the remainder. So, 4 and 15 are divisors and there are no other divisors greater than 15. SUM=46+19=65<br/>
+60 divided by 5 gives 12 as the quotient and 0 as the remainder. So, 5 and 12 are divisors and there are no other divisors greater than 12. SUM=65+17=82<br/>
+60 divided by 6 gives 10 as the quotient and 0 as the remainder. So, 6 and 10 are divisors and there are no other divisors greater than 10. SUM=82+16=98<br/>
+60 divided by 7 gives 8 as the quotient and 4 as the remainder. So, 7 is not a divisor and there are no other divisors greater than or equal to 8.<br/>
+<br/><br/>
 </p>
 <p>
 Now, we see that there is no need to see any more divisors. The divisors of 60 are 2,30,3,20,4,15,5,12,6 and 10. And their sum is 97. So, 60 is not a perfect number. Lets try this procedure on 28 which is the next prefect number after 6.
 </p>
 <p>
-28 divided by 2 gives 14 as the quotient and 0 as the remainder. So, 2 and 14 are divisors and there are no other divisors greater than 14. SUM=1+16=17<br>
-28 divided by 3 gives 9 as the quotient and 2 as the remainder. So, 3 is not a divisor and there are no other divisors greater than or equal to 9. SUM=17<br>
-28 divided by 4 gives 7 as the quotient and 0 as the remainder. So, 4 and 7 are divisors and there are no other divisors greater than 7. SUM=17+11=28<br>
-28 divided by 5 gives 5 as the quotient and 3 as the remainder. So, 5 is not a divisor and there are no other divisors greater than 5. SUM=28<br>
-<br><br></p>
+28 divided by 2 gives 14 as the quotient and 0 as the remainder. So, 2 and 14 are divisors and there are no other divisors greater than 14. SUM=1+16=17<br/>
+28 divided by 3 gives 9 as the quotient and 2 as the remainder. So, 3 is not a divisor and there are no other divisors greater than or equal to 9. SUM=17<br/>
+28 divided by 4 gives 7 as the quotient and 0 as the remainder. So, 4 and 7 are divisors and there are no other divisors greater than 7. SUM=17+11=28<br/>
+28 divided by 5 gives 5 as the quotient and 3 as the remainder. So, 5 is not a divisor and there are no other divisors greater than 5. SUM=28<br/>
+<br/><br/></p>
 <p>
 We need not check any more numbers. The SUM is 28, and hence, 28 is a perfect number.
 </p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 Consider the fraction A/B. We use two variables A,B to represent a fraction. Lets see how can we solve the
 problem. A/B = q + 1/E. How can we find q,E given A,B such that E&amp;gt1.; From math basics any fraction can be
@@ -136,7 +141,7 @@ <h2>Problem 2</h2>
 we express E in terms of some (x,y) where x = B and y = A-B*q and do the same operation as we have done on (A,B).
 It is recommended to use while loop and handle the termination case properly while coding.
 </p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -150,12 +155,12 @@ <h2>Problem 2</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
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@@ -163,11 +168,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -175,18 +180,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -252,4 +257,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 545aa960..aabb380a 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 792e06ab..694be9ae 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><a href="http://209.211.220.205/fee
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 			
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -211,4 +216,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 731341ab..4bce36f6 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -114,12 +119,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
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 			<div class="col-md-2 border-right-green-dotted">
@@ -127,11 +132,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -139,18 +144,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
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-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -216,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index 94458c7b..bd43f737 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
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+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
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@@ -79,82 +84,82 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p>
-Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
+Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
 	There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.
 Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.
 Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.
 	Factorials are also used extensively in probability theory.
 	Factorials can be useful to facilitate expression manipulation.
-<br>Here we present two problems based on factorials.<br>
+<br/>Here we present two problems based on factorials.<br/>
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p>Given a positive integer, find the number of digits in the factorial of the number.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain a single positive integer N(&lt; 10<sup>6</sup>) input from keyboard.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be the number of digits in the factorial of the given number.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 5<br>                                  
-Output:2<br>                                  
-Input: 52<br>                                 
-Output: 68<br>
+Input: 5<br/>                                  
+Output:2<br/>                                  
+Input: 52<br/>                                 
+Output: 68<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
 <p> 
 Find the number of zeroes at the end of factorial of a number.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain a single positive integer N input from keyboard, lesser than 10^9.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be the number of zeroes at the end of the factorial of the given number.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 5<br>
-Output:1<br>
-Input: 25<br>
-Output: 6<br>
+Input: 5<br/>
+Output:1<br/>
+Input: 25<br/>
+Output: 6<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -168,12 +173,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -181,11 +186,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -193,18 +198,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -271,4 +276,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index 95245420..c08229cf 100644
--- a/src/lab/exp4/Manual.html
+++ b/src/lab/exp4/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index ef0a56d9..d71c102f 100644
--- a/src/lab/exp4/Objective.html
+++ b/src/lab/exp4/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index 4dc57b0e..e502f011 100644
--- a/src/lab/exp4/Procedure.html
+++ b/src/lab/exp4/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -223,4 +228,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quizzes.html
index 52ef55ad..e848cc52 100644
--- a/src/lab/exp4/Quizzes.html
+++ b/src/lab/exp4/Quizzes.html
@@ -1,28 +1,32 @@
-
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -56,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -64,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -78,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -87,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+<!--			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+-->			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -111,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -196,110 +200,110 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -307,7 +311,7 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -325,12 +329,12 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -338,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -350,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -429,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 1940004b..1cdc110b 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
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 			                        	<input type="submit" value="" class="search-button" /> -->
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@@ -55,15 +60,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
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-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
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-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
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@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -97,77 +102,77 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
-We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br>
-1! = 1<br>
-2! = 1*2 = 2<br>
-3! = 1*2*3 = 6<br>
-4! = 1*2*3*4 = 24<br>
-.<br>
-.<br>
-.<br>
-10! = 3628800<br>
-So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br>
-<br><br></p>
+We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
+1! = 1<br/>
+2! = 1*2 = 2<br/>
+3! = 1*2*3 = 6<br/>
+4! = 1*2*3*4 = 24<br/>
+.<br/>
+.<br/>
+.<br/>
+10! = 3628800<br/>
+So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br/>
+<br/><br/></p>
 <p>
-Similarly 53! would take 2*68=136 operations from 52!.<br>
-52! would take 2*67 = 134 operations from 51!<br>
-51! would take 2*65 = 130 operations from 50!.<br>
+Similarly 53! would take 2*68=136 operations from 52!.<br/>
+52! would take 2*67 = 134 operations from 51!<br/>
+51! would take 2*65 = 130 operations from 50!.<br/>
 
-We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br>
-<br></p>
+We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br/>
+<br/></p>
 <p>
-Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br>
+Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br/>
 
-For any N, <br>
-N=x*10<sup>exp</sup><br> 
-=&gt; log10(N) = log10(x) + exp.<br> 
-For n=95,<br>
-log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br>
-N = x*10<sup>exp</sup> , x &lt; 1 <br> 
-Taking step on both sides. <br>
-=&gt; step(log10(N)) = step(log10(x)+exp)<br>
-=&gt; step(log10(N)) = exp-1<br>
-=&gt; exp = step(log10(N))+1<br>
-=&gt; No_digits(N) = step(log10(N))+1<br>
-<br><br></p>
+For any N, <br/>
+N=x*10<sup>exp</sup><br/> 
+=&gt; log10(N) = log10(x) + exp.<br/> 
+For n=95,<br/>
+log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br/>
+N = x*10<sup>exp</sup> , x &lt; 1 <br/> 
+Taking step on both sides. <br/>
+=&gt; step(log10(N)) = step(log10(x)+exp)<br/>
+=&gt; step(log10(N)) = exp-1<br/>
+=&gt; exp = step(log10(N))+1<br/>
+=&gt; No_digits(N) = step(log10(N))+1<br/>
+<br/><br/></p>
 <p>
-Applying the above formula to calculate the number of digits of N! gives<br>
-No_digits(N!) = step(log10(N!) ) +1<br>
-=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br>
-=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br></p>
+Applying the above formula to calculate the number of digits of N! gives<br/>
+No_digits(N!) = step(log10(N!) ) +1<br/>
+=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br/>
+=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br/></p>
 <p>
-log10(N) can be easily calculated by the log10 function in math.h.<br>
-<br></p>
+log10(N) can be easily calculated by the log10 function in math.h.<br/>
+<br/></p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
-Let us observe the zeroes in the factorial of a few numbers.<br>
+Let us observe the zeroes in the factorial of a few numbers.<br/>
 
-4!=24           (0 zeroes)<br>
-5!=120          (1 zeroes)<br>
-6!=720          (1 zeroes)<br>
-7!=5040         (1 zeroes)<br>
-8!=40320        (1 zeroes)<br>
-9!=362880       (1 zeroes)<br>
-10!=3628800     (2 zeroes)<br>
-11!-14!         (2 zeroes)<br>
-15!             (3 zeroes)<br>
-<br><br></p>
+4!=24           (0 zeroes)<br/>
+5!=120          (1 zeroes)<br/>
+6!=720          (1 zeroes)<br/>
+7!=5040         (1 zeroes)<br/>
+8!=40320        (1 zeroes)<br/>
+9!=362880       (1 zeroes)<br/>
+10!=3628800     (2 zeroes)<br/>
+11!-14!         (2 zeroes)<br/>
+15!             (3 zeroes)<br/>
+<br/><br/></p>
 <p>
-We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br>
-<br></p>
+We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br/>
+<br/></p>
 <p>
-Let p be a prime number.<br>
+Let p be a prime number.<br/>
 
-n!=1×2×…×(n−1)×n <br>
-We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br>
-Thus:<br>
-μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br>
-Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br>
-<br><br></p>
+n!=1×2×…×(n−1)×n <br/>
+We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br/>
+Thus:<br/>
+μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br/>
+Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br/>
+<br/><br/></p>
 <p align="right"></p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -181,12 +186,12 @@ <h2>Problem 2</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
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@@ -194,11 +199,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
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+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
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-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
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@@ -206,18 +211,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
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+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
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+				height: 38px"/></a>
 
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@@ -284,4 +289,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
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diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index 72cd8252..afe6234e 100644
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@@ -1,30 +1,35 @@
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+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index 33938b02..b46e08f7 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><a href="http://209.211.220.
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index c9a7f2b0..176dda73 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index d8fec2a1..cfbcb8ad 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,30 +84,30 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 String is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and/or the length changed, or it may be fixed (after creation). A string is generally understood as a data type and is often implemented as a byte (or word) array that stores a sequence of elements, typically characters, using some character encoding. A string may also denote more general array data types and/or other sequential data types and structures; terms such as byte string, or more general, string of datatype, or datatype-string, are sometimes used to denote strings in which the stored data does not(necessarily) represent text. 
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 
-<br>
+<br/>
 <p> 
 A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
 right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
@@ -111,52 +116,52 @@ <h2>Problem 1:</h2>
 <p>
 Write a program that detects palindromes. Your program should accept a string from the key board and output YES/NO.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain a string S entered  from keyboard, with number of characters less than 1000.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: Madam, I'm Adam<br>
-Output:YES<br>
-Input: Eve.<br>
-Output: NO<br>
+Input: Madam, I'm Adam<br/>
+Output:YES<br/>
+Input: Eve.<br/>
+Output: NO<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
 <p> 
 Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by deletion of none, one or more characters.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain two strings separated by a space and size of each string is at max 10<sup>7</sup>.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: hyderabad her<br>
-Output: YES<br>
-Input: hyderabad dear<br>
-Output: NO<br>
+Input: hyderabad her<br/>
+Output: YES<br/>
+Input: hyderabad dear<br/>
+Output: NO<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -170,12 +175,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -183,11 +188,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -195,18 +200,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -272,4 +277,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index ccc3db5b..0ecbb603 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+	-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -215,4 +220,4 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
\ No newline at end of file
+</body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index dbb71dc3..31bbd53d 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index 00d5b73d..e81e6128 100644
--- a/src/lab/exp5/Procedure.html
+++ b/src/lab/exp5/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index 1f1f7ae1..ac6d29ec 100644
--- a/src/lab/exp5/Quizzes.html
+++ b/src/lab/exp5/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 <style>
@@ -54,7 +59,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -62,13 +67,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -76,7 +81,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -85,15 +90,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -109,17 +114,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -136,110 +141,110 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -247,7 +252,7 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -265,12 +270,12 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -278,11 +283,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -290,18 +295,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -368,4 +373,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index 54b16ce5..01f60df5 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,24 +84,24 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string.
 </p>
@@ -104,37 +109,37 @@ <h2>Problem 1</h2>
 Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that the characters in string2 must appear in the same order as in string1.
-<br>
-<br></p>
+<br/>
+<br/></p>
 <p>
 </p><h4> Mathematical formulation </h4>
 <p>Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
 such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct?
-B[0] occurs at X[0]<br>
-B[1] occurs at X[1]<br>
-..<br>
-..<br>
-..<br>
-B[N-1] occurs at X[N-1]<br>
-<br><br></p>
+B[0] occurs at X[0]<br/>
+B[1] occurs at X[1]<br/>
+..<br/>
+..<br/>
+..<br/>
+B[N-1] occurs at X[N-1]<br/>
+<br/><br/></p>
 <p>
 Now, we remove all other characters from A except those which appear at positions indicated by array X. Then we get string B.Thus the problem formulation is correct. The order constraint between X[i]'s is element because we want the characters in B to appear in order in A.
-<br>
-<br></p>
-<br>
+<br/>
+<br/></p>
+<br/>
 <h4> Solution</h4>
 <p>So now once we have stated the problem mathematically we would like to know how can we find
 array X subjected to the constraints mentioned.Lets see how can we find X[0]. You must be apply
 the same logic on how to find other values of array X once you are familier with X[0].
 X[0] has only one constraint to be satisfied which is A[X[0]] = B[0] . There can be many values
 of X[0] which can satisfy the above constraint. So which value should X[0] take?
-<br>
-<br>
-<br><br></p>
+<br/>
+<br/>
+<br/><br/></p>
 <h4> Proofs </h4>
 <p>
 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value, amongst all the members of set S. If |S|=1 , then it is obviously valid. So, assume |S|&gt;=2. We will deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. It can happen that B[1] is not present in [b+1 m] at all which would imply that string B cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a then it is possible that string B might be a subsequence of string A. Thus, X[0] must take the minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen as X[0]. 
@@ -144,7 +149,7 @@ <h4> Proofs </h4>
 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO.
 </p>
 <p align="right"></p>
-<br><p></p><br></div>						</div>
+<br/><p></p><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -158,12 +163,12 @@ <h4> Proofs </h4>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -171,11 +176,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -183,18 +188,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -260,4 +265,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index 09efd445..e0915735 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index e9111267..515a3ca2 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><a href="http://209.211.220.205/feed
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index b694204a..3e23fdab 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -220,4 +225,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index 7de6936f..7b4d6be5 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,80 +84,80 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p>
 
 Welcome to recursion. One of the most easiest things to code but really hard to debug! Recursion is a very powerful tool to solve problems. All loops(while, for , do while) can be simulated using recursion. Also the main step of the dynamic programming is recursion which is useful in solving many algorithmically difficult problems. Lets solve some problems now.
 
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
-<br>
+<br/>
 <p> 
 You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt; 2N. You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine how many possible ways there are of placing some weights on the sides of the scales, so as to balance them (put them in a state of equilibrium).
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must be a single integer denoting the number ways in which one can balance the weight W by placing weights on any side.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 2 4<br>
-Output: 3 <br>
-Input: 5 10<br>
-Output: 14 <br>
+Input: 2 4<br/>
+Output: 3 <br/>
+Input: 5 10<br/>
+Output: 14 <br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
 <p> 
 Given a weighing pan, n weights and a destination weight D, print “YES” or “NO” depending whether you can weight D using other weights given.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input begins with numbers of weights n, then n values denoting mass of each weight and then in the end destination weight D.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 As the output, print “YES” if it is possible to weight D, otherwise “NO”.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input:  3 1 3 4 2<br>
-Output: YES<br>
-Input: 2 1 3 5 <br>
-Output: NO <br>
+Input:  3 1 3 4 2<br/>
+Output: YES<br/>
+Input: 2 1 3 5 <br/>
+Output: NO <br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -166,12 +171,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -179,11 +184,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -191,18 +196,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -268,4 +273,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 9b56f075..7e55f4ef 100644
--- a/src/lab/exp6/Manual.html
+++ b/src/lab/exp6/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index 7aa548f8..52190f6c 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index 05eef28d..ed6d12a8 100644
--- a/src/lab/exp6/Procedure.html
+++ b/src/lab/exp6/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quizzes.html
index 261f5500..35952f19 100644
--- a/src/lab/exp6/Quizzes.html
+++ b/src/lab/exp6/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -428,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 53d73e11..04ef3fd2 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -100,7 +105,7 @@ <h2>Problem 1</h2>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep some weights on left side and some weights on right side and we may not use some weights at all. Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of weights between two pans is 0 we report yes. Consider the i<sup>th </sup>weight and suppose the current difference between left pan and right pan is x. If x is 0 then yes we donot choose any weight and thus return 1.
@@ -108,34 +113,34 @@ <h2>Problem 2</h2>
 <p>
 Otherwise we have three options
 </p>
-<br>
+<br/>
 <p>
 <b>Option1:</b>
 
 Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right pan becomes x - weight[i].
-<br>
+<br/>
 <b>Option2:</b>
 Put the i<sup>th</sup> weight on left pan.In which case the difference between left and right pan becomes x + weight[i].
-<br>
+<br/>
 <b>Option3:</b>
 Donot put the i<sup>th</sup> weight on either pan.In which case the difference between left and right pan remains x.
-<br><br></p>
+<br/><br/></p>
 <p>
-<br>
+<br/>
 This gives the following  <b> Recursive Function : </b>
-<br></p>
+<br/></p>
 <p>
-Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br>
-w[i],w[i+1],...,w[n-1].<br>
-Obviously, F(i,0) is 1, Otherwise<br>
-F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br>
-
-F(i+1,x) corresponds to Option3.<br>
-F(i+1,x-w[i]) corresponds to Option1.<br>
-F(i+1,x+w[i]) corresponds to Option2.<br>
-<br><br><br><br><br><br><br></p>
+Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br/>
+w[i],w[i+1],...,w[n-1].<br/>
+Obviously, F(i,0) is 1, Otherwise<br/>
+F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br/>
+
+F(i+1,x) corresponds to Option3.<br/>
+F(i+1,x-w[i]) corresponds to Option1.<br/>
+F(i+1,x+w[i]) corresponds to Option2.<br/>
+<br/><br/><br/><br/><br/><br/><br/></p>
 <p align="right"></p>
-<br><br></div>						</div>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -149,12 +154,12 @@ <h2>Problem 2</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -162,11 +167,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -174,18 +179,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -251,4 +256,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index 2db24e97..081b2fc3 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index 313539c7..0dd60810 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
 			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><a href="http://209.211.22
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index 8d8b9c04..7976f71c 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -114,12 +119,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -127,11 +132,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -139,18 +144,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.htmlx" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.htmlx" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -216,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 26fe8a02..7bdec476 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" />
 			                        </form> -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,77 +84,77 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 Let us consider the task of representing very large numbers in C. As we know we cannot store an intger of maximum value 2<sup>63</sup>-1 and minimum value -2<sup>63 </sup>sing a long long data type in C. But how do we represent numbers which are not in this range, say for example 10<sup>50</sup>.In one of the problems we ask you to do this and explain how it is done usually.
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p>
 The task is to accomplish addition of two large positive numbers
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 There will be two positive integers (&lt; 10^50) separated by a space.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must contain a single number representing the sum of the two integers
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 323289329329392893 3283928392839283928932329<br>
-Output:3283928716128613258325222<br>
-Input: 10 99<br>
-Output: 109<br>
+Input: 323289329329392893 3283928392839283928932329<br/>
+Output:3283928716128613258325222<br/>
+Input: 10 99<br/>
+Output: 109<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
 <p> 
 Find the square root of a positive integer using binary search.
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input will contain a single positive integer N input from keyboard, lesser than 10^9.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Print the square root of the number upto 4 decimal places. A difference upto 0.001 from the the judges solution will be accepted as correct.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 5<br>
-Output: 2.2361<br>
-Input: 25<br>
-Output: 5.0000<br>
+Input: 5<br/>
+Output: 2.2361<br/>
+Input: 25<br/>
+Output: 5.0000<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -163,12 +168,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -176,11 +181,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -188,18 +193,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
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 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
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-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -265,4 +270,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index 9dc1aa7d..691cac49 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 3c8e1f55..36065a8e 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+<!--			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+-->			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index 73fcfcec..2af526fd 100644
--- a/src/lab/exp7/Procedure.html
+++ b/src/lab/exp7/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quizzes.html
index d1186878..2894ff70 100644
--- a/src/lab/exp7/Quizzes.html
+++ b/src/lab/exp7/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -428,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index 7af3567d..f308cc11 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,43 +84,43 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell. Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than 10 then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive integer &gt; 1 lies in between [1 N]. Suppose P is a number such that P*P &gt; N then the result must be in the interval [1 P-1] oterwise if P*P &lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval or conclude that mid is the square root of N.While coding do take care of the fact of precision since mid*mid may not be exactly equal N.
-<br>
-<br></p>
+<br/>
+<br/></p>
 <h3>Time complexity</h3>
-<br>
+<br/>
 <p>
 If you analyze the number of operations it takes this function to run it is easy to see that it will take logN (logN to base 2) operations. At every step of the search we chose either (start,mid-1) or (mid+1,end) which means the interval size gets reduced by half. Initially the range is N, in the next step it will become N/2, then N/4, and so after x steps the search range will be N/(2^x) which will be 1 when x is logN. So, the number of iterations is log(N).
 </p>
 <p align="right"></p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -129,12 +134,12 @@ <h3>Time complexity</h3>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -142,11 +147,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -154,18 +159,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -231,4 +236,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index 8b55ac9b..dfd30b77 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index 92e6d500..7882d092 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><a href="http://209.211.
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index bb100c75..96d47b31 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index 1d0ed535..bb654e59 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,81 +84,81 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 Searching and Sorting are very important areas in computer science. Efficient sorting algorithms are required for optimizing the use of other algorithms that require sorted lists to work correctly, for example to do binary search sorting is required.We present two problems here based on variant of binary search and sorting. Hope you will appreciate them.
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
-<br>
+<br/>
 <p> 
 You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this problem we ask you to find out the number of invalid triangles formed from these set of numbers. The degenerate traiangles are considered to be valid traiangles.
 
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
 are separated by spaces and each number is &gt; 0 and &lt; 10<sup>6</sup>.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Print the number of invalid traingles that can be formed.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 5 <br>
-1 2 3 4 10<br>
-Output: 7 <br>
-<br></p>
+Input: 5 <br/>
+1 2 3 4 10<br/>
+Output: 7 <br/>
+<br/></p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
-<br>
+<br/>
 <p> 
 Given a String and a character set we need to find out the length of the
 smallest substring which contains all the characters of the set.
 
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 The input contains a string(length&lt;=10<sup>5</sup>) made up of small letters from english language followed by number of characters N(&lt; 26) and then N chracters in the next line follow separated by spaces.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 The output must contain the length of the smallest substring which contains
 all the characters from the character set. If no such substring exists report -1.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: applelooksred 3 e a p<br>
+Input: applelooksred 3 e a p<br/>
 Output: 5
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -167,12 +172,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -180,11 +185,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -192,18 +197,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -269,4 +274,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index 879ea103..c5ab475f 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 2f22b188..21e132a2 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
index 767f859d..f698037b 100644
--- a/src/lab/exp8/Procedure.html
+++ b/src/lab/exp8/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+<!--			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+-->			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quizzes.html
index 71e1f882..d3e03050 100644
--- a/src/lab/exp8/Quizzes.html
+++ b/src/lab/exp8/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -428,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 5e53ca55..1d96e7c0 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -101,13 +106,13 @@ <h2>Problem 1</h2>
 
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Consider the given string. We need to find the smallest substring which contains all the characters of the given set. Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are scanning the string from the left and we know the latest occurrences of the characters of input set in the input string, say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
 </p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -121,12 +126,12 @@ <h2>Problem 2</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -134,11 +139,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -146,18 +151,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -223,4 +228,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index 9f13ec40..dd9f4407 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 4802edbe..0609dc25 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" />
 			                        </form> -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,12 +113,12 @@ <h1 class="text-h2-lightblue">Permutations</h1><a href="http://209.211.220.205/f
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -121,11 +126,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -133,18 +138,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -210,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 2ef01ec4..377a1220 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
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 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -118,12 +123,12 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -131,11 +136,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -143,18 +148,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -218,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index b4c606a0..fd4c5731 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,28 +84,28 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-1-content">
-<br>
+<br/>
 <p> 
 		  Permutations occur, in more or less prominent ways, in almost every domain of mathematics. They often arise when different orderings on certain finite sets are considered, possibly only because one wants to ignore such orderings and needs to know how many configurations are thus identified. For similar reasons permutations arise in the study of sorting algorithms in computer science. Here we present two problems based on permutations and combinations.
 
 		  </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p>  
 
@@ -108,68 +113,68 @@ <h2>Problem 1:</h2>
 			  ways you can balance that Sum using one or all weights. If there is no combination possible, print -1.
 
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Input Specification</b><br>
+<b>Input Specification</b><br/>
 </p>
 <p>
 			  Input contains 2 lines . First line contains N(&lt; 10) denoting the number of weights. The next line
 			  contains N weights (&lt;=wt&lt;=100) followed by a Sum(&lt;=100) which we need to balance.
 
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Output Specification</b><br>
+<b>Output Specification</b><br/>
 </p>
 <p>
 
 			  Output must be a integer. Print -1 in case there is no way in which we can achieve the value Sum by using some weights otherwise print the number of ways in which we can attain the weight Sum. Please note that if Sum S can be attained by keeping some weights a1,a2,a3,.. on left side and p1,p2,.. on the right then keeping p1,p2,... on the left and a1,a2,.. on right will also result in achieving sum S, but it has to be counted only once not twice in the solution.
 
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Sample Input and Output</b><br>
+<b>Sample Input and Output</b><br/>
 </p>
 <p>
-			  Input: 3<br> 
-			  1 2 3 56 <br>
-			  Output:-1<br>
-<br></p><hr>
-<br>
-<br><p></p>
+			  Input: 3<br/> 
+			  1 2 3 56 <br/>
+			  Output:-1<br/>
+<br/></p><hr/>
+<br/>
+<br/><p></p>
 <p align="right"></p>
 <h2>Problem 2:</h2>
 <p> 
 			  Given N followed by N weights, see how many different ways, one can generate sets of balancing weights. The weight on the right side of the pan must be a single weight.Please note that we cannot place multiple weights on right side.
 
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Input Specification</b><br>
+<b>Input Specification</b><br/>
 </p><p>
 </p><p>
 			  Input contains a integer N followed by N weights separated by spaces. The value of N is &lt;=10 and each weight W &lt;=100.
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Output Specification</b><br>
+<b>Output Specification</b><br/>
 </p>
 <p>
 			  Output must be the number of ways we can generate sets of balancing weights according to the given restriction.
 			  </p>
-<br><hr>
+<br/><hr/>
 <p>
-<b>Sample Input and Output</b><br>
+<b>Sample Input and Output</b><br/>
 </p>
 <p>
-			  Input: 3 1 2 3<br>
-			  Output:1<br>
-			  Input: 5 1 2 3 4 5<br>
-			  Output: 4<br>
+			  Input: 3 1 2 3<br/>
+			  Output:1<br/>
+			  Input: 5 1 2 3 4 5<br/>
+			  Output: 4<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br></div>						</div>
+<br/><hr/>
+<br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -183,12 +188,12 @@ <h2>Problem 2:</h2>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -196,11 +201,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -208,18 +213,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -285,4 +290,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index aecfc600..0d461ded 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 29c9143f..dfa097d5 100644
--- a/src/lab/exp9/Objective.html
+++ b/src/lab/exp9/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -112,12 +117,12 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -125,11 +130,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -137,18 +142,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -214,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index f3b7697c..65e27b4f 100644
--- a/src/lab/exp9/Procedure.html
+++ b/src/lab/exp9/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -120,12 +125,12 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -133,11 +138,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -145,18 +150,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -222,4 +227,4 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
\ No newline at end of file
+</body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index d0ec1ec8..b65562b6 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -195,110 +200,110 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -306,7 +311,7 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -324,12 +329,12 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -337,11 +342,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -349,18 +354,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -428,4 +433,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 6b1f0650..ec0f8ba2 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,32 +84,32 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 	Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the weight(w) as the first weights one by one, also taking care the the total weight(S) is not greater than reqired weight W. Those weights which make the total weight(S) greater than W are exluded from the list of avaliable weights for the next recursive. Now we only have to solve the same problem for a simpler case to get the complete solution, i.e., solving the same problem for the remaining weight, W-w, and available pool of weights now also does not have w. If accumulated weight is equal to w, then we increment the counter. If at any time, the pool of remaining weights is exhausted, then that attempt is aborted. So, our recursion function would be needing 2 variables, one containing the list of available weights and the other signifying remaining weight to be accrued.
 
 	</p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 	For each weight in the input we keep it on right pan and try using other weights to balance it. Let us say we have kept i<sup>th</sup> weight on the right pan, out task is now to keep weights on left side of the pan so that the sum of the weights on left side of the pan is equal to the weight on the right side,i.e weight[i]. For each weight W[k], we can keep it either on left pan or we donot to keep it at all. Make sure to disregard the weight when k is equal to i because that weight is already on right side.
 	</p>
@@ -113,15 +118,15 @@ <h3>Recursive formulation </h3>
 	Let F(index,i,S) denotes the number of ways in which we can obtain weight[i] using weights from weight[index], weight[index+1], weight[index+2],..., weight[n-1] and currently because of choosing some weights from weight[0], weight[1],..., weight[index-1] the sum of the weights has become S. So we need to achieve weight[i]-S by choosing some weights from weight[index], weight[index+1],..., weight[n-1].
 	</p>
 <p>
-	A pseudo code would look like: <br>
+	A pseudo code would look like: <br/>
 
-	F(index,i,S) = F(index+1,i,S)   If index=i <br>
-	= 1             If index=N and S=weight[i] <br>
-	= 0             If index=N and S!=weight[i]<br>
-	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br>
-<br><br></p>
+	F(index,i,S) = F(index+1,i,S)   If index=i <br/>
+	= 1             If index=N and S=weight[i] <br/>
+	= 0             If index=N and S!=weight[i]<br/>
+	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br/>
+<br/><br/></p>
 <p align="right"></p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -135,12 +140,12 @@ <h3>Recursive formulation </h3>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
 			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
 				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
+				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
 			</div>
 
 			<div class="col-md-2 border-right-green-dotted">
@@ -148,11 +153,11 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
+				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
+				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
 				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
+				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
+				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
 	                </div>
 
 			<div class="col-md-3 border-right-green-dotted" id="contact">
@@ -160,18 +165,18 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
+				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
 			</div>
 
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 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
 				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
+				height: 38px"/></a>
 
 			</div>
 
@@ -237,4 +242,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>

From a5350246ed00b0a45ecba77ff6fff84885a4d966 Mon Sep 17 00:00:00 2001
From: mrudhvika940 <mrudhvikadamaraju@gmail.com>
Date: Tue, 24 Mar 2020 11:52:14 +0530
Subject: [PATCH 02/22] updated header ans footer

---
 src/lab/Courses Aligned.html                  |  88 ++-
 src/lab/Feedback.html                         |  90 ++-
 src/lab/Introduction.html                     |  90 ++-
 src/lab/List of experiments.html              |  90 ++-
 src/lab/Prerequisites.html                    |  90 ++-
 src/lab/Target Audience.html                  |  90 ++-
 src/lab/default.html                          |  87 ++-
 src/lab/exp1/Experiment.html                  |  92 ++-
 src/lab/exp1/Feedback.html                    |  90 ++-
 src/lab/exp1/Further Readings.html            |  92 ++-
 src/lab/exp1/Hints1/Hint_0.html               |   8 +-
 src/lab/exp1/Hints1/Hint_1.html               |  15 +-
 src/lab/exp1/Hints1/Hint_2.html               |  15 +-
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 src/lab/exp1/Hints2/Hint_3.html               |  16 +-
 src/lab/exp1/Hints2/Hint_4.html               |  12 +-
 src/lab/exp1/Introduction.html                |  90 ++-
 src/lab/exp1/Manual.html                      |  94 ++-
 src/lab/exp1/Objective.html                   |  95 ++-
 src/lab/exp1/Procedure.html                   |  91 ++-
 src/lab/exp1/Quizzes.html                     |  94 ++-
 src/lab/exp1/Theory.html                      |  90 ++-
 src/lab/exp1/bk_lab.html                      | 577 ++++++++---------
 src/lab/exp1/bkcontent.html                   |  91 +--
 src/lab/exp1/bkindex.html                     | 186 +++---
 src/lab/exp1/content1.html                    |  18 +-
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 src/lab/exp1/content_template.html            |  45 +-
 src/lab/exp1/default.html                     | 233 +++----
 .../exp1/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp1/furtherReadings.html             | 172 ++---
 src/lab/exp1/indexmar.html                    |  73 ++-
 src/lab/exp1/lab.html                         | 581 ++++++++---------
 src/lab/exp1/lab_test.html                    | 299 ++++-----
 src/lab/exp1/newindex.html                    |  71 ++-
 src/lab/exp1/objective.html                   | 114 ++--
 src/lab/exp1/previndex.html                   | 186 +++---
 src/lab/exp1/prevlab.html                     | 577 ++++++++---------
 src/lab/exp1/prob_desc.html                   | 132 ++--
 src/lab/exp1/quiz.html                        | 172 ++---
 src/lab/exp1/realcontent.html                 |  93 +--
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 src/lab/exp1/test.html                        | 395 ++++++------
 src/lab/exp1/theory.html                      |  58 +-
 src/lab/exp10/Experiment.html                 |  90 ++-
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 src/lab/exp10/Introduction.html               |  90 ++-
 src/lab/exp10/Manual.html                     |  90 ++-
 src/lab/exp10/Objective.html                  |  90 ++-
 src/lab/exp10/Procedure.html                  |  91 ++-
 src/lab/exp10/Quizzes.html                    |  90 ++-
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 src/lab/exp10/content1.html                   |  18 +-
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 src/lab/exp10/default.html                    | 233 +++----
 .../edit_area/plugins/charmap/popup.html      |  51 +-
 src/lab/exp10/furtherReadings.html            | 172 ++---
 src/lab/exp10/lab.html                        | 585 +++++++++---------
 src/lab/exp10/lab_test.html                   | 299 ++++-----
 src/lab/exp10/objective.html                  | 114 ++--
 src/lab/exp10/prob_desc.html                  | 118 ++--
 src/lab/exp10/quiz.html                       | 172 ++---
 src/lab/exp10/submission014407413.html        |  96 +--
 src/lab/exp10/submission041099922.html        |  98 +--
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 src/lab/exp10/test.html                       | 395 ++++++------
 src/lab/exp10/theory.html                     |  52 +-
 src/lab/exp2/Experiment.html                  |  89 ++-
 src/lab/exp2/Feedback.html                    |  90 ++-
 src/lab/exp2/Further Readings.html            |  90 ++-
 src/lab/exp2/Hints1/Hint_0.html               |   7 +-
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 src/lab/exp2/Introduction.html                |  91 ++-
 src/lab/exp2/Manual.html                      |  91 ++-
 src/lab/exp2/Objective.html                   |  90 ++-
 src/lab/exp2/Procedure.html                   |  91 ++-
 src/lab/exp2/Quizzes.html                     |  91 ++-
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 src/lab/exp2/bk_index.html                    | 194 +++---
 src/lab/exp2/content1.html                    |  20 +-
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 src/lab/exp2/default.html                     | 233 +++----
 .../exp2/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp2/furtherReadings.html             | 172 ++---
 src/lab/exp2/lab.html                         | 585 +++++++++---------
 src/lab/exp2/lab_test.html                    | 299 ++++-----
 src/lab/exp2/objective.html                   | 114 ++--
 src/lab/exp2/previndex.html                   | 194 +++---
 src/lab/exp2/prob_desc.html                   | 124 ++--
 src/lab/exp2/quiz.html                        | 172 ++---
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 src/lab/exp2/theory.html                      |  52 +-
 src/lab/exp3/Experiment.html                  | 151 ++---
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 src/lab/exp3/Introduction.html                | 213 +++----
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 src/lab/exp3/lab.html                         | 585 +++++++++---------
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 src/lab/exp3/objective.html                   | 114 ++--
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 src/lab/exp4/lab.html                         | 585 +++++++++---------
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 src/lab/exp4/objective.html                   | 114 ++--
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 src/lab/exp5/lab.html                         | 583 ++++++++---------
 src/lab/exp5/lab_test.html                    | 299 ++++-----
 src/lab/exp5/objective.html                   | 114 ++--
 src/lab/exp5/prob_desc.html                   | 118 ++--
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 .../exp6/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp6/furtherReadings.html             | 172 ++---
 src/lab/exp6/lab.html                         | 581 ++++++++---------
 src/lab/exp6/lab_test.html                    | 299 ++++-----
 src/lab/exp6/objective.html                   | 114 ++--
 src/lab/exp6/prob_desc.html                   | 126 ++--
 src/lab/exp6/quiz.html                        | 172 ++---
 src/lab/exp6/submission078498950.html         |  90 +--
 src/lab/exp6/submission376667958.html         |  90 +--
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 src/lab/exp7/Introduction.html                |  91 ++-
 src/lab/exp7/Manual.html                      |  91 ++-
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 src/lab/exp7/content1.html                    |  18 +-
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 .../exp7/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp7/furtherReadings.html             | 172 ++---
 src/lab/exp7/lab.html                         | 583 ++++++++---------
 src/lab/exp7/lab_test.html                    | 299 ++++-----
 src/lab/exp7/objective.html                   | 114 ++--
 src/lab/exp7/prob_desc.html                   |  98 +--
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 src/lab/exp7/submission190225116.html         |  92 +--
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 src/lab/exp8/lab.html                         | 583 ++++++++---------
 src/lab/exp8/lab_test.html                    | 299 ++++-----
 src/lab/exp8/objective.html                   | 114 ++--
 src/lab/exp8/prob_desc.html                   | 140 +++--
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 src/lab/exp8/submission173316296.html         | 102 +--
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 src/lab/exp8/submission667158425.html         | 102 +--
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 src/lab/exp9/Experiment.html                  |  91 ++-
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 src/lab/exp9/Introduction.html                |  91 ++-
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 .../exp9/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp9/furtherReadings.html             | 172 ++---
 src/lab/exp9/lab.html                         | 583 ++++++++---------
 src/lab/exp9/lab_test.html                    | 299 ++++-----
 src/lab/exp9/objective.html                   | 114 ++--
 src/lab/exp9/prob_desc.html                   | 118 ++--
 src/lab/exp9/quiz.html                        | 172 ++---
 src/lab/exp9/submission045226925.html         |  90 +--
 src/lab/exp9/submission093704599.html         |  87 +--
 src/lab/exp9/submission188928472.html         |  88 +--
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 src/lab/exp9/test.html                        | 395 ++++++------
 src/lab/exp9/theory.html                      |  52 +-
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 src/lab/faq.html                              | 226 ++++---
 src/lab/index.html                            | 170 +++--
 src/themes/green-icon/css/style.css           | 101 +++
 src/themes/green-icon/search-result.html      | 121 ++--
 581 files changed, 26461 insertions(+), 25090 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index c02f9f23..8eabaf5a 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
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-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
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-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
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-			<div class="col-md-3 border-right-green-dotted" id="contact">
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 9f466514..3ada0a03 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -110,52 +110,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><a href="http://feedback.v
 
 			
 	</div> <!-- content div -->
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-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -216,4 +211,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 75d34b01..d8e37d40 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -116,52 +116,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -222,4 +217,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index bdba5178..5c057765 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -155,52 +155,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -260,4 +255,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index e16d0014..085c5a0f 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -118,52 +118,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -223,4 +218,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index 678bbc4a..faf44dbd 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -114,52 +114,47 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -220,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/default.html b/src/lab/default.html
index fe98c3bf..b67bf5f1 100644
--- a/src/lab/default.html
+++ b/src/lab/default.html
@@ -1,13 +1,13 @@
-<!--This file has got the default structure of the html pages-->
-
-<!DOCTYPE html>
-<html lang="en">
-
-<head>
+<!--This file has got the default structure of the html pages--><!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
   <title> UI Manual</title>
 </head>
 
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="lab"> <!-- The Lab Document Container-->
   
@@ -16,13 +16,13 @@
 
   <header id="lab-header">
     
-    <div id="lab-header-logo" class="logo">
+    <div class="logo" id="lab-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="images/logo.jpg" />
+      <img src="images/logo.jpg"/>
     </div>
 
-    <div id="lab-header-heading" class="heading">
+    <div class="heading" id="lab-header-heading">
     <!-- Write the name of your lab and link it to the home page
     of your lab. -->
       <a href="index.html">Problem Solving Lab </a>	
@@ -47,7 +47,7 @@
       
       <!-- You can add a welcome message or title of the 
       experiment enclosed in h1 tag here -->
-      <div id="lab-article-heading" class="heading">
+      <div class="heading" id="lab-article-heading">
         Welcome to my lab!
       </div>
 
@@ -76,21 +76,21 @@
 			
       <!-- First section of the article-->
       <section id="lab-article-section-1">
-        <div id="lab-article-section-1-icon" class="icon">
+        <div class="icon" id="lab-article-section-1-icon">
           <!-- Enclose the icon image for the section. -->
-	  <img src="images/introduction.jpg" />
+	  <img src="images/introduction.jpg"/>
 	</div>
 
 
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-	<div id="lab-article-section-1-heading" class="heading">
+	<div class="heading" id="lab-article-section-1-heading">
 	Introduction
 	</div>
 				
 	<!-- Write the section content inside a paragraph 
         element, You can also include images with <img> tag -->
-	<div id="lab-article-section-1-content" class="content">
+	<div class="content" id="lab-article-section-1-content">
 	  <p>
 	    Welcome to the Physics lab!  In this lab, we will do
             virtual experiments to understand Newton's laws of 
@@ -105,21 +105,21 @@
       <!-- Second section of the article-->
       <section id="lab-article-section-2">
         
-        <div id="lab-article-section-2-icon" class="icon">
+        <div class="icon" id="lab-article-section-2-icon">
           <!-- Enclose the icon image for the section. -->
-	  <img src="images/simulation.jpg" />
+	  <img src="images/simulation.jpg"/>
 	</div>
 
 
         <!-- The heading for the section can be enclosed in a 
         div tag and shown with a <h2> tag -->
-	<div id="lab-article-section-2-heading" class="heading">
+	<div class="heading" id="lab-article-section-2-heading">
 	List of experiments
 	</div>
 				
 	<!-- Write the section content inside a paragraph 
         element, You can also include images with <img> tag -->
-        <div id="lab-article-section-2-content" class="content">
+        <div class="content" id="lab-article-section-2-content">
 	  <ul id="list-of-experiments">
 	  
             <li> 
@@ -142,9 +142,47 @@
 		
       <!-- Article footer can display related content and 
       additional links -->						
-      <footer id="lab-article-footer">
-	<!-- Put the content that you want to appear here-->
-      </footer>
+      <footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
     </article>
 	
@@ -155,5 +193,6 @@
   </footer>
 
 </div>
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 10589036..472a7046 100644
--- a/src/lab/exp1/Experiment.html
+++ b/src/lab/exp1/Experiment.html
@@ -113,54 +113,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -222,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index bac2f702..f2706f6c 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -110,52 +110,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><a href="http://209.2
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -217,4 +212,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index c5d5d6c7..4d030855 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -62,9 +62,7 @@
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
-			                    </li>
+			                    
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
@@ -119,53 +117,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
diff --git a/src/lab/exp1/Hints1/Hint_0.html b/src/lab/exp1/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp1/Hints1/Hint_0.html
+++ b/src/lab/exp1/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_1.html b/src/lab/exp1/Hints1/Hint_1.html
index 87838f15..de133ea0 100755
--- a/src/lab/exp1/Hints1/Hint_1.html
+++ b/src/lab/exp1/Hints1/Hint_1.html
@@ -1,12 +1,17 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
-->count the bits using a while loop
-->print count
+-&gt;declare N, count
+-&gt;scan N and make count 0
+-&gt;count the bits using a while loop
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index baf2450d..5b08db03 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
@@ -1,13 +1,18 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
-->Use right shift operator and while
+-&gt;declare N, count
+-&gt;scan N and make count 0
+-&gt;Use right shift operator and while
   loop for find the number of bits
-->print count
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 24856ee8..85ba18f4 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
+++ b/src/lab/exp1/Hints1/Hint_3.html
@@ -1,15 +1,20 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
+-&gt;declare N, count
+-&gt;scan N and make count 0
 while(n){
-	n>>=1;
+	n&gt;&gt;=1;
 	count++;
 }
-->print count
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index 742a9713..8d32d2cc 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
+++ b/src/lab/exp1/Hints1/Hint_4.html
@@ -1,11 +1,15 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -13,3 +17,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 7786ca51..1f715ad7 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
-->Add the number of  strings 
+-&gt;Add the number of  strings 
   we surpass when we move from 
   i<sup>th</sup> character to  i+1<sup>th</sup> character of 
   input string
@@ -13,3 +16,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index 5eb3994c..9f7f26bf 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -1,12 +1,15 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
 
-->for i=0 to lengt;h of inputString
+-&gt;for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -16,3 +19,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index 11f66d3e..afea4148 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -1,17 +1,20 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
 
--> Number of strings starting with 
+-&gt; Number of strings starting with 
    ordering[j] is given by 2^j , store 
    them in an array or calculate on the fly
    using left shift operator
 
-->for i=0 to lengt;h of inputString
+-&gt;for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -21,3 +24,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index 46e7bc40..09a9de71 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -1,13 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -31,3 +34,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 538030c2..55080f74 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -165,52 +165,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -272,4 +267,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index 28e2accc..a53aac1d 100644
--- a/src/lab/exp1/Manual.html
+++ b/src/lab/exp1/Manual.html
@@ -113,56 +113,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-			<!--	<a href="http://118.102.191.38/feedback/Registration.html"
-			class="text-a-lightgreen"
-			style="text-decoration: underline;"
-			> Nodal Center</a> -->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
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+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 </div> <!-- top div -->
@@ -223,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 54f95823..21e498e7 100644
--- a/src/lab/exp1/Objective.html
+++ b/src/lab/exp1/Objective.html
@@ -62,9 +62,7 @@
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
-			                    </li>
+			                    
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
@@ -113,56 +111,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!-- <a href="http://118.102.191.38/feedback/Registration.html"
-				class="text-a-lightgreen"
-				style="text-decoration:
-				underline;" > Nodal
-				Center</a> -->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index faa74183..ed0d1499 100644
--- a/src/lab/exp1/Procedure.html
+++ b/src/lab/exp1/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -227,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quizzes.html
index 92d346ab..a949c61b 100644
--- a/src/lab/exp1/Quizzes.html
+++ b/src/lab/exp1/Quizzes.html
@@ -325,56 +325,47 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-<!--				<a href="http://118.102.191.38/feedback/Registration.html"
-				class="text-a-lightgreen"
-				style="text-decoration:
-				underline;" > Nodal
-				Center</a> -->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -438,4 +429,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index e7ad2e8b..d26e606c 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -144,52 +144,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -251,4 +246,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bk_lab.html b/src/lab/exp1/bk_lab.html
index 5fbc518f..039626e1 100755
--- a/src/lab/exp1/bk_lab.html
+++ b/src/lab/exp1/bk_lab.html
@@ -1,287 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bkcontent.html b/src/lab/exp1/bkcontent.html
index 3e171776..81c91e0e 100755
--- a/src/lab/exp1/bkcontent.html
+++ b/src/lab/exp1/bkcontent.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -12,80 +16,80 @@ <h2>Introduction </h2>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number.
+Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number.
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a single positive integer(&lt 10<sup>6</sup>).
+Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 4<br />
-Output:3<br />
-Input: 16 <br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 4<br/>
+Output:3<br/>
+Input: 16 <br/>
 Output: 5<br/>
-<br><hr />
-<br>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 3 A B C AC <br />
-Output: 4<br />
-Input: 3 A B C BC<br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 3 A B C AC <br/>
+Output: 4<br/>
+Input: 3 A B C BC<br/>
 Output: 6<br/>
-<br><hr />
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
-etc.<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
+etc.<br/>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
 </p>       
 
-<br>
+<br/>
 
 <h3>Problem 2</h3>
 <p>
@@ -107,3 +111,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bkindex.html b/src/lab/exp1/bkindex.html
index a79598bf..d8a3150a 100755
--- a/src/lab/exp1/bkindex.html
+++ b/src/lab/exp1/bkindex.html
@@ -1,91 +1,95 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 4<br />
-						Output:3<br />
-						Input: 16 <br />
-						Output: 5<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 4<br/>
+						Output:3<br/>
+						Input: 16 <br/>
+						Output: 5<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1.html b/src/lab/exp1/content1.html
index b3e2a660..17b8e0b9 100755
--- a/src/lab/exp1/content1.html
+++ b/src/lab/exp1/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> Numerical Representation </h1>
 
 <p>Please insert your code here</p> -->
 
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1_1.html b/src/lab/exp1/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp1/content1_1.html
+++ b/src/lab/exp1/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1_2.html b/src/lab/exp1/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp1/content1_2.html
+++ b/src/lab/exp1/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1_3.html b/src/lab/exp1/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp1/content1_3.html
+++ b/src/lab/exp1/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content2.html b/src/lab/exp1/content2.html
index 00c1917f..51cda900 100755
--- a/src/lab/exp1/content2.html
+++ b/src/lab/exp1/content2.html
@@ -1,8 +1,13 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content2_1.html b/src/lab/exp1/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp1/content2_1.html
+++ b/src/lab/exp1/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content3.html b/src/lab/exp1/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp1/content3.html
+++ b/src/lab/exp1/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content3_1.html b/src/lab/exp1/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp1/content3_1.html
+++ b/src/lab/exp1/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content_template.html b/src/lab/exp1/content_template.html
index 93ea877e..d171e982 100755
--- a/src/lab/exp1/content_template.html
+++ b/src/lab/exp1/content_template.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -8,42 +12,42 @@ <h1 id="main-title">
 <h2>Introduction </h2> 
 <p> 
 </p>
-<br>
+<br/>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-<br><hr />
-<br>
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-<br><hr />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
@@ -51,7 +55,7 @@ <h2>Problem 1</h2>
 <p>
 </p>
 
-<br>
+<br/>
 
 <h2>Problem 2</h2>
 <p>
@@ -71,3 +75,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/default.html b/src/lab/exp1/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp1/default.html
+++ b/src/lab/exp1/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/edit_area/plugins/charmap/popup.html b/src/lab/exp1/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp1/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp1/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/furtherReadings.html b/src/lab/exp1/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp1/furtherReadings.html
+++ b/src/lab/exp1/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/indexmar.html b/src/lab/exp1/indexmar.html
index 454bc4d0..42351293 100755
--- a/src/lab/exp1/indexmar.html
+++ b/src/lab/exp1/indexmar.html
@@ -1,16 +1,19 @@
-<!DOCTYPE html> 
-<html lang="eng">
-<head>
-	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
+<!DOCTYPE html>
+<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
 	<title> Virtual Labs | Experiments </title>
 
-	<link href="default.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-	<link href="../css/prettify.css" type="text/css" rel="stylesheet" /> 
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/> 
 
-	<script type="text/javascript" src="../colorjs/prettify.js"></script> 
+	<script src="../colorjs/prettify.js" type="text/javascript"></script> 
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -42,7 +45,7 @@
     </script>
 </head>
 
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
         <header id="site_head">
                 <div class="header_cont"> <!-- 960px header-->
                         <!-- LOGO of the company-->
@@ -75,8 +78,48 @@ <h1> <a href="http://virtual-labs.ac.in"> Virtual Labs </a> </h1>
 			
 		</aside>
 
-		<footer class="bottom">
-		</footer>
-</body>
-</html>
+		<footer class="bottom" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
+
+
+</article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/lab.html b/src/lab/exp1/lab.html
index 7dd8b6ba..4a7fdc64 100755
--- a/src/lab/exp1/lab.html
+++ b/src/lab/exp1/lab.html
@@ -1,289 +1,292 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
- 
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Numerical Representation </h1>
+			</div>
+
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+ 
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/lab_test.html b/src/lab/exp1/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp1/lab_test.html
+++ b/src/lab/exp1/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/newindex.html b/src/lab/exp1/newindex.html
index 8af97fcc..ab432777 100755
--- a/src/lab/exp1/newindex.html
+++ b/src/lab/exp1/newindex.html
@@ -1,14 +1,17 @@
-<!DOCTYPE html> 
-<html lang="eng">
-<head>
-	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
+<!DOCTYPE html>
+<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
 	<title> Virtual Labs | Programming Lab 2 </title>
 
-	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-	<link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-	<script type="text/javascript" src="../colorjs/prettify.js"></script>
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	<script src="../colorjs/prettify.js" type="text/javascript"></script>
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -40,7 +43,7 @@
     </script>
 </head>
 
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 	<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -73,8 +76,48 @@ <h1>Experiment 1</h1>
 			
 		</aside>
 
-		<footer class="bottom">
-		</footer>
+		<footer class="bottom" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
 	</div>
-</body>
-</html>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
+	
+
+
+</article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/objective.html b/src/lab/exp1/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp1/objective.html
+++ b/src/lab/exp1/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/previndex.html b/src/lab/exp1/previndex.html
index 837c1b0d..92b17533 100755
--- a/src/lab/exp1/previndex.html
+++ b/src/lab/exp1/previndex.html
@@ -1,91 +1,95 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 4<br />
-						Output:3<br />
-						Input: 16 <br />
-						Output: 5<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 4<br/>
+						Output:3<br/>
+						Input: 16 <br/>
+						Output: 5<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/prevlab.html b/src/lab/exp1/prevlab.html
index e5cd3d36..ffe0edd8 100755
--- a/src/lab/exp1/prevlab.html
+++ b/src/lab/exp1/prevlab.html
@@ -1,287 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/prob_desc.html b/src/lab/exp1/prob_desc.html
index 14a7e4ac..1ee1f233 100755
--- a/src/lab/exp1/prob_desc.html
+++ b/src/lab/exp1/prob_desc.html
@@ -1,64 +1,68 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-	<title>Experiment 1</title>
-        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-        <link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-        <script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-        <script type="text/javascript" src="../colorjs/prettify.js"></script>
-	<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-	<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-	<div id="content">
-	<ol>
-	<li> 
-        <h2>Problem 1:</h2>
-	Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number
-						<br /><br /><hr />
-	<b>Input Specification</b><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-	<b>Output Specification</b><br />
-	Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-	<b>Sample Input and Output</b><br />
-	Input: 4<br />
-	Output: 3<br />
-	Input: 16 <br />
-	Output: 5<br/>
-	<hr />
-	</li>
-	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-	<li><h2>Problem 2:</h2>
-<p>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-</p>
-						<br /><br /><hr />
-<b>Input Specification</b><br/>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br /><br /><hr />
-<b>Output Specification</b><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<b>Sample Input and Output</b><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-			<div id="footer">
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>Experiment 1</title>
+        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+        <link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+        <script src="../colorjs/prettify.js" type="text/javascript"></script>
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<div id="content">
+	<ol>
+	<li> 
+        <h2>Problem 1:</h2>
+	Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number
+						<br/><br/><hr/>
+	<b>Input Specification</b><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+	<b>Output Specification</b><br/>
+	Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+	<b>Sample Input and Output</b><br/>
+	Input: 4<br/>
+	Output: 3<br/>
+	Input: 16 <br/>
+	Output: 5<br/>
+	<hr/>
+	</li>
+	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+	<li><h2>Problem 2:</h2>
+<p>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+</p>
+						<br/><br/><hr/>
+<b>Input Specification</b><br/>
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br/><br/><hr/>
+<b>Output Specification</b><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<b>Sample Input and Output</b><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+			<div id="footer">
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/quiz.html b/src/lab/exp1/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp1/quiz.html
+++ b/src/lab/exp1/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/realcontent.html b/src/lab/exp1/realcontent.html
index a3aac2e9..8d98719e 100755
--- a/src/lab/exp1/realcontent.html
+++ b/src/lab/exp1/realcontent.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Numerical Representation
 </h1>
 
@@ -9,84 +13,84 @@ <h2>Introduction </h2>
 <p> 
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br>
+<br/>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as a binary number.
+Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a single positive integer(&lt 10<sup>6</sup>).
+Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 4<br />
-Output:3<br />
-Input: 16 <br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 4<br/>
+Output:3<br/>
+Input: 16 <br/>
 Output: 5<br/>
-<br><hr />
-<br>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 3 A B C AC <br />
-Output: 4<br />
-Input: 3 A B C BC<br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 3 A B C AC <br/>
+Output: 4<br/>
+Input: 3 A B C BC<br/>
 Output: 6<br/>
-<br><hr />
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
-etc.<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
+etc.<br/>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
 </p>       
 
-<br>
+<br/>
 
 <h2>Problem 2</h2>
 <p>
@@ -108,3 +112,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission040361394.html b/src/lab/exp1/submission040361394.html
index 4b03c40f..92ac1f97 100644
--- a/src/lab/exp1/submission040361394.html
+++ b/src/lab/exp1/submission040361394.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp; -->
 <!-- <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>)</span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082188330.html b/src/lab/exp1/submission082188330.html
index 2b5792a4..66cd8178 100644
--- a/src/lab/exp1/submission082188330.html
+++ b/src/lab/exp1/submission082188330.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -286,23 +288,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>1000000
 </td><td>20
 </td><td>20
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -315,10 +316,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082365658.html b/src/lab/exp1/submission082365658.html
index fc387f2d..6d2cfc07 100644
--- a/src/lab/exp1/submission082365658.html
+++ b/src/lab/exp1/submission082365658.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission100779049.html b/src/lab/exp1/submission100779049.html
index fad0fe22..6265321e 100644
--- a/src/lab/exp1/submission100779049.html
+++ b/src/lab/exp1/submission100779049.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,11 +208,11 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
-<iframe id="upload_target" name ="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
 </form>
 </span>
 
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission111383690.html b/src/lab/exp1/submission111383690.html
index 17e82f56..a2b5078e 100644
--- a/src/lab/exp1/submission111383690.html
+++ b/src/lab/exp1/submission111383690.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission155196644.html b/src/lab/exp1/submission155196644.html
index 8d27602f..2e52fa80 100644
--- a/src/lab/exp1/submission155196644.html
+++ b/src/lab/exp1/submission155196644.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission192297025.html b/src/lab/exp1/submission192297025.html
index 345f6dc1..9b3b9464 100644
--- a/src/lab/exp1/submission192297025.html
+++ b/src/lab/exp1/submission192297025.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -250,48 +252,47 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -318,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -337,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission246138070.html b/src/lab/exp1/submission246138070.html
index 47887176..b0d91ada 100644
--- a/src/lab/exp1/submission246138070.html
+++ b/src/lab/exp1/submission246138070.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission261786162.html b/src/lab/exp1/submission261786162.html
index af9803f6..63b80d0c 100644
--- a/src/lab/exp1/submission261786162.html
+++ b/src/lab/exp1/submission261786162.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -252,50 +254,49 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -308,10 +309,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission293575265.html b/src/lab/exp1/submission293575265.html
index 5ac0b840..641c7d2e 100644
--- a/src/lab/exp1/submission293575265.html
+++ b/src/lab/exp1/submission293575265.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission341502595.html b/src/lab/exp1/submission341502595.html
index dc7b8926..9f3866f8 100644
--- a/src/lab/exp1/submission341502595.html
+++ b/src/lab/exp1/submission341502595.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,50 +236,49 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -290,10 +291,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission374353207.html b/src/lab/exp1/submission374353207.html
index bd0b9861..1d33ff5a 100644
--- a/src/lab/exp1/submission374353207.html
+++ b/src/lab/exp1/submission374353207.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -251,34 +253,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -299,23 +301,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -328,10 +329,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission394922362.html b/src/lab/exp1/submission394922362.html
index 8d27602f..2e52fa80 100644
--- a/src/lab/exp1/submission394922362.html
+++ b/src/lab/exp1/submission394922362.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission398367358.html b/src/lab/exp1/submission398367358.html
index 345f6dc1..9b3b9464 100644
--- a/src/lab/exp1/submission398367358.html
+++ b/src/lab/exp1/submission398367358.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -250,48 +252,47 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -318,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -337,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission447675640.html b/src/lab/exp1/submission447675640.html
index 5e8f3637..3ac2a206 100644
--- a/src/lab/exp1/submission447675640.html
+++ b/src/lab/exp1/submission447675640.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>20
-</td><td> Failed </td><td> Run Time Error </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission451578265.html b/src/lab/exp1/submission451578265.html
index bd0b9861..1d33ff5a 100644
--- a/src/lab/exp1/submission451578265.html
+++ b/src/lab/exp1/submission451578265.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -251,34 +253,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -299,23 +301,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -328,10 +329,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission465083441.html b/src/lab/exp1/submission465083441.html
index 5ac0b840..641c7d2e 100644
--- a/src/lab/exp1/submission465083441.html
+++ b/src/lab/exp1/submission465083441.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission535736206.html b/src/lab/exp1/submission535736206.html
index 138e893e..7383252d 100644
--- a/src/lab/exp1/submission535736206.html
+++ b/src/lab/exp1/submission535736206.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,27 +220,26 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -253,34 +255,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission612317503.html b/src/lab/exp1/submission612317503.html
index fc387f2d..6d2cfc07 100644
--- a/src/lab/exp1/submission612317503.html
+++ b/src/lab/exp1/submission612317503.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission851076195.html b/src/lab/exp1/submission851076195.html
index dc7b8926..9f3866f8 100644
--- a/src/lab/exp1/submission851076195.html
+++ b/src/lab/exp1/submission851076195.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,50 +236,49 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -290,10 +291,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission932738197.html b/src/lab/exp1/submission932738197.html
index 8d27602f..2e52fa80 100644
--- a/src/lab/exp1/submission932738197.html
+++ b/src/lab/exp1/submission932738197.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission958166466.html b/src/lab/exp1/submission958166466.html
index 47887176..b0d91ada 100644
--- a/src/lab/exp1/submission958166466.html
+++ b/src/lab/exp1/submission958166466.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/test.html b/src/lab/exp1/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp1/test.html
+++ b/src/lab/exp1/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/theory.html b/src/lab/exp1/theory.html
index efde3cb9..760afe7b 100755
--- a/src/lab/exp1/theory.html
+++ b/src/lab/exp1/theory.html
@@ -1,18 +1,21 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
 <!--		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/> -->
-	        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-       		<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	        <script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
-	        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-	        <script type="text/javascript" src="../colorjs/prettify.js"></script>
+	        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+       		<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	        <script src="../colorjs/prettify.js" type="text/javascript"></script>
 
 <!--		<script src="jqminmax.js" type="text/javascript"></script> -->
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -38,12 +41,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-<p>
+        <p></p><h3>Problem 1</h3>
+<pre><p>
         Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.
         n=1
         0,1
@@ -69,13 +71,12 @@ <h2>Theory</h2>
 
 
 </p>       
-</p>
+<p></p>
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
 	Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. 
 	If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B right.
 	Thus the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC.
@@ -85,12 +86,13 @@ <h2>Theory</h2>
 	we proceed adding the requisite number of strings to our result.   
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index cbd380d6..3e28907c 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -113,52 +113,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -220,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index b7fa6e72..4be57de8 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -109,52 +109,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><a href="http://209.211.220.205/feed
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
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-			</div>
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -216,4 +211,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index f0ff292c..a9c55cf7 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -119,52 +119,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 </div> <!-- top div -->
 
@@ -224,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index d9d10e89..59ac8d41 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
-->declare variables to store the
+-&gt;declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
-->Iterate over the array and update the 
+-&gt;Iterate over the array and update the 
   variables 
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index d842949e..0dd8fa94 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -1,23 +1,27 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
-->declare variables to store the
+-&gt;declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
- ->curr_size=1
- ->max_size = 0
+ -&gt;curr_size=1
+ -&gt;max_size = 0
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
-		->update max_size, curr_size
+		-&gt;update max_size, curr_size
 	  else
-		  ->update curr_size
+		  -&gt;update curr_size
 	
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index fb4ea16b..d1d227dd 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -1,12 +1,15 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
 
- ->curr_size=1
- ->max_size = 0   //to take care of empty array
+ -&gt;curr_size=1
+ -&gt;max_size = 0   //to take care of empty array
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
 		++curr_size
@@ -14,8 +17,9 @@
 		 curr_size=1;
 	 max_size = (max_size&gt;curr_size)?max_size:curr_size
 	
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 782b15d3..1d820a5c 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -1,15 +1,18 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -24,3 +27,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
+++ b/src/lab/exp10/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index 40acf619..17aabae7 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
- ->Implement the recursive formula
+ -&gt;Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index 7df43da2..39967322 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -1,22 +1,26 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
   for i=0 to N
-	  ->Initialise best[i]
+	  -&gt;Initialise best[i]
 	  for j=0 to i-1
 		if arr[i]&lt;arr[j]
 			best[i] = max(best[i],best[j]+1)
-	  ->Try to update the answer
- ->Implement the recursive formula
+	  -&gt;Try to update the answer
+ -&gt;Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index 5a042c48..cec5e0a6 100755
--- a/src/lab/exp10/Hints2/Hint_3.html
+++ b/src/lab/exp10/Hints2/Hint_3.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
   int longest_length=0;
@@ -19,3 +22,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index b646bb15..2bb826be 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -29,3 +32,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index a1c6e629..c06e45ba 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -172,52 +172,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -279,4 +274,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
index 3819f1e7..b0305c7f 100644
--- a/src/lab/exp10/Manual.html
+++ b/src/lab/exp10/Manual.html
@@ -113,52 +113,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
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+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
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+	<h4>Follow Us</h4>
+	<div class="social-links">
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+	    <i class="fa fa-facebook"></i>
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+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 
@@ -219,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
index 94aae96b..5c75a4a6 100644
--- a/src/lab/exp10/Objective.html
+++ b/src/lab/exp10/Objective.html
@@ -113,52 +113,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
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-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-			</div>
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
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+</div>
+</footer>
 
 
 
@@ -220,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
index 0c4115bf..44f4d7d2 100644
--- a/src/lab/exp10/Procedure.html
+++ b/src/lab/exp10/Procedure.html
@@ -123,53 +123,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -231,4 +225,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quizzes.html
index 642ebf5e..88b4210b 100644
--- a/src/lab/exp10/Quizzes.html
+++ b/src/lab/exp10/Quizzes.html
@@ -325,52 +325,47 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
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+</div>
+</footer>
 
 
 
@@ -434,4 +429,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index a0740152..6fb94c04 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -133,51 +133,47 @@ <h3>Recursive formulation </h3>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-			</div>
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-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -239,4 +235,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1.html b/src/lab/exp10/content1.html
index 383d1231..0e7199b9 100755
--- a/src/lab/exp10/content1.html
+++ b/src/lab/exp10/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> Sequences </h1>
 
 <p>Please insert your code here</p> -->
 
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1_1.html b/src/lab/exp10/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp10/content1_1.html
+++ b/src/lab/exp10/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1_2.html b/src/lab/exp10/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp10/content1_2.html
+++ b/src/lab/exp10/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1_3.html b/src/lab/exp10/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp10/content1_3.html
+++ b/src/lab/exp10/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content2.html b/src/lab/exp10/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp10/content2.html
+++ b/src/lab/exp10/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content2_1.html b/src/lab/exp10/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp10/content2_1.html
+++ b/src/lab/exp10/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content3.html b/src/lab/exp10/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp10/content3.html
+++ b/src/lab/exp10/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content3_1.html b/src/lab/exp10/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp10/content3_1.html
+++ b/src/lab/exp10/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content4.html b/src/lab/exp10/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp10/content4.html
+++ b/src/lab/exp10/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5.html b/src/lab/exp10/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp10/content5.html
+++ b/src/lab/exp10/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5_1.html b/src/lab/exp10/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp10/content5_1.html
+++ b/src/lab/exp10/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5_2.html b/src/lab/exp10/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp10/content5_2.html
+++ b/src/lab/exp10/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5_3.html b/src/lab/exp10/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp10/content5_3.html
+++ b/src/lab/exp10/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/default.html b/src/lab/exp10/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp10/default.html
+++ b/src/lab/exp10/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/edit_area/plugins/charmap/popup.html b/src/lab/exp10/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp10/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp10/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/furtherReadings.html b/src/lab/exp10/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp10/furtherReadings.html
+++ b/src/lab/exp10/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/lab.html b/src/lab/exp10/lab.html
index a8a95667..bb99adc1 100755
--- a/src/lab/exp10/lab.html
+++ b/src/lab/exp10/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Sequences </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Sequences </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/lab_test.html b/src/lab/exp10/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp10/lab_test.html
+++ b/src/lab/exp10/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/objective.html b/src/lab/exp10/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp10/objective.html
+++ b/src/lab/exp10/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/prob_desc.html b/src/lab/exp10/prob_desc.html
index 3457ba01..a1d5b741 100755
--- a/src/lab/exp10/prob_desc.html
+++ b/src/lab/exp10/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
-						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
-						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
-						Output:6<br />
-						Input: 1 2 3 4 5 6 7 8<br />
-						Output: 1<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
-	positive integers (each &lt=10^9).
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br />
-						Output:6<br />
-						Input: 6 <br />
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-
-			</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
+						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
+						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
+						Output:6<br/>
+						Input: 1 2 3 4 5 6 7 8<br/>
+						Output: 1<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
+	positive integers (each &lt;=10^9).
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br/>
+						Output:6<br/>
+						Input: 6 <br/>
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+
+			</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/quiz.html b/src/lab/exp10/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp10/quiz.html
+++ b/src/lab/exp10/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission014407413.html b/src/lab/exp10/submission014407413.html
index 965e26f1..2c84c1c8 100644
--- a/src/lab/exp10/submission014407413.html
+++ b/src/lab/exp10/submission014407413.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -243,51 +245,50 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -305,13 +306,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission041099922.html b/src/lab/exp10/submission041099922.html
index 01985f9b..9378c746 100644
--- a/src/lab/exp10/submission041099922.html
+++ b/src/lab/exp10/submission041099922.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -243,56 +245,55 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c:1:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '<' token<br/>>
+<br/><br/>c:1:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '&lt;' token<br/>&gt;
 <br/> ^<br/>c:2:0:<br/>h:139:1: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>c:2:0:<br/>h:331:4: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:361:4: error: unknown type name 'size_t'<br/>n,<br/> ^<br/>h:466:22: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>h:468:22: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:468:38: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:480:36: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:492:0,<br/>c:2:<br/>h:32:22: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>c:2:0:<br/>h:498:22: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>h:503:45: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:503:65: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:756:9: error: unknown type name 'size_t'<br/>r)<br/> ^<br/>h:756:25: error: unknown type name 'size_t'<br/>r)<br/> ^<br/>h:765:34: error: unknown type name 'size_t'<br/>e,<br/> ^<br/>h:765:50: error: unknown type name 'size_t'<br/>e,<br/> ^<br/>h:844:6: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:847:6: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:851:31: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>h:855:31: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>h:863:36: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:867:34: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:874:1: error: unknown type name 'size_t'<br/>s,<br/> ^<br/>h:875:32: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:877:1: error: unknown type name 'size_t'<br/>s,<br/> ^<br/>h:878:38: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>c: In function 'main':<br/>c:7:5: warning: incompatible implicit declaration of built-in function 'fscanf' [enabled by default]<br/>,
 <br/> ^<br/>c:7:12: error: 'stdin' undeclared (first use in this function)<br/>,
 <br/> ^<br/>c:7:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:7:30: error: 'EOF' undeclared (first use in this function)<br/>,
 <br/> ^<br/>c:21:2: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -310,13 +311,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -329,10 +330,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission069210435.html b/src/lab/exp10/submission069210435.html
index 83633c35..8f0a71ae 100644
--- a/src/lab/exp10/submission069210435.html
+++ b/src/lab/exp10/submission069210435.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,35 +246,35 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission081503699.html b/src/lab/exp10/submission081503699.html
index 1068a942..fd5c26be 100644
--- a/src/lab/exp10/submission081503699.html
+++ b/src/lab/exp10/submission081503699.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,51 +246,50 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -306,13 +307,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission097709078.html b/src/lab/exp10/submission097709078.html
index 1b11e317..9305f82d 100644
--- a/src/lab/exp10/submission097709078.html
+++ b/src/lab/exp10/submission097709078.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,84 +220,82 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
 		<td> Result </td>
 		<td> Remarks </td>
 		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></table></div> <!--contentLeft -->
+</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -307,10 +308,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission132342816.html b/src/lab/exp10/submission132342816.html
index 2c691f98..b1c80d77 100644
--- a/src/lab/exp10/submission132342816.html
+++ b/src/lab/exp10/submission132342816.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -245,51 +247,50 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -307,13 +308,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -326,10 +327,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission136616632.html b/src/lab/exp10/submission136616632.html
index 8b0d9349..6eb80002 100644
--- a/src/lab/exp10/submission136616632.html
+++ b/src/lab/exp10/submission136616632.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -245,35 +247,35 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -302,23 +304,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -331,10 +332,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission139577371.html b/src/lab/exp10/submission139577371.html
index b1ff8654..e74709de 100644
--- a/src/lab/exp10/submission139577371.html
+++ b/src/lab/exp10/submission139577371.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -249,45 +251,44 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -316,13 +317,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission150766206.html b/src/lab/exp10/submission150766206.html
index f18027c5..09fe7850 100644
--- a/src/lab/exp10/submission150766206.html
+++ b/src/lab/exp10/submission150766206.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,7 +220,7 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
@@ -225,57 +228,56 @@ <h1> Experiment 10  </h1>
 	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	long long int N;
-	scanf("%lld",&N);
+	scanf("%lld",&amp;N);
 	long long int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%lld",arr+i);
 	long long int ans = 0;
 	long long int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%lld\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -304,23 +306,22 @@ <h1> Experiment 10  </h1>
 78 74 41 73 3 6 80 86 77 83 
 </td><td>4
 </td><td>4
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -333,10 +334,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission154563970.html b/src/lab/exp10/submission154563970.html
index 4f157aa1..cfb2a6f6 100644
--- a/src/lab/exp10/submission154563970.html
+++ b/src/lab/exp10/submission154563970.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int lengt;h=1;
 	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_lengt;h=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			lengt;h++;
 		else
 			lengt;h = 1;
-		if(max_lengt;h<lengt;h)
+		if(max_lengt;h&lt;lengt;h)
 			max_lengt;h = lengt;h;
 		num = curr_num;
 	}
@@ -246,57 +248,56 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:6:12: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:6:12: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:6:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:7:20: error: 'i' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:7:22: error: 'curr_num' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:16:3: error: 'else' without a previous 'if'<br/>e
 <br/> ^<br/>c:18:15: error: expected ')' before ';' token<br/>)
 <br/> ^<br/>c:22:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -309,10 +310,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission197741129.html b/src/lab/exp10/submission197741129.html
index 898bd07d..7df51cc1 100644
--- a/src/lab/exp10/submission197741129.html
+++ b/src/lab/exp10/submission197741129.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -248,45 +250,44 @@ <h1> Experiment 10  </h1>
 return 0;	
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -315,13 +316,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -334,10 +335,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission225823924.html b/src/lab/exp10/submission225823924.html
index 96439d37..f8a923de 100644
--- a/src/lab/exp10/submission225823924.html
+++ b/src/lab/exp10/submission225823924.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,63 +220,62 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	long long int N;
-	scanf("%lld",&N);
+	scanf("%lld",&amp;N);
 	long long int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%lld",arr+i);
 	long long int ans = 0;
 	long long int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%lld\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -281,23 +283,22 @@ <h1> Experiment 10  </h1>
 		<td> Remarks </td>
 		</tr><tr><td></td><td>0
 </td><td>1
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -310,10 +311,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission248914412.html b/src/lab/exp10/submission248914412.html
index 83633c35..8f0a71ae 100644
--- a/src/lab/exp10/submission248914412.html
+++ b/src/lab/exp10/submission248914412.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,35 +246,35 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission294791598.html b/src/lab/exp10/submission294791598.html
index f0600b20..b16d5cf1 100644
--- a/src/lab/exp10/submission294791598.html
+++ b/src/lab/exp10/submission294791598.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,23 +220,22 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-	#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+	#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
@@ -248,51 +250,50 @@ <h1> Experiment 10  </h1>
 	
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +306,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission298808864.html b/src/lab/exp10/submission298808864.html
index 228f6247..cf67b9f8 100644
--- a/src/lab/exp10/submission298808864.html
+++ b/src/lab/exp10/submission298808864.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,76 +220,74 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission320709922.html b/src/lab/exp10/submission320709922.html
index 27c687b0..be7f78a0 100644
--- a/src/lab/exp10/submission320709922.html
+++ b/src/lab/exp10/submission320709922.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -251,45 +253,44 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -318,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -337,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission325134226.html b/src/lab/exp10/submission325134226.html
index c90f564a..4fc05b7f 100644
--- a/src/lab/exp10/submission325134226.html
+++ b/src/lab/exp10/submission325134226.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -249,45 +251,44 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -316,13 +317,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission327800652.html b/src/lab/exp10/submission327800652.html
index c90f564a..4fc05b7f 100644
--- a/src/lab/exp10/submission327800652.html
+++ b/src/lab/exp10/submission327800652.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -249,45 +251,44 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -316,13 +317,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission341467322.html b/src/lab/exp10/submission341467322.html
index 1068a942..fd5c26be 100644
--- a/src/lab/exp10/submission341467322.html
+++ b/src/lab/exp10/submission341467322.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,51 +246,50 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -306,13 +307,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission385914953.html b/src/lab/exp10/submission385914953.html
index 2c691f98..b1c80d77 100644
--- a/src/lab/exp10/submission385914953.html
+++ b/src/lab/exp10/submission385914953.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -245,51 +247,50 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -307,13 +308,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -326,10 +327,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission389808530.html b/src/lab/exp10/submission389808530.html
index a78e0640..955fd717 100644
--- a/src/lab/exp10/submission389808530.html
+++ b/src/lab/exp10/submission389808530.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,78 +220,76 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	long long int N;
-	scanf("%lld",&N);
+	scanf("%lld",&amp;N);
 	long long int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%lld",arr+i);
 	long long int ans = 0;
 	long long int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%lld\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -301,10 +302,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission389904397.html b/src/lab/exp10/submission389904397.html
index 965e26f1..2c84c1c8 100644
--- a/src/lab/exp10/submission389904397.html
+++ b/src/lab/exp10/submission389904397.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -243,51 +245,50 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -305,13 +306,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission451338786.html b/src/lab/exp10/submission451338786.html
index c8d388f3..d2a6fbba 100644
--- a/src/lab/exp10/submission451338786.html
+++ b/src/lab/exp10/submission451338786.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,80 +220,78 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
 	
 	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 	long long int N;
-	scanf("%lld",&N);
+	scanf("%lld",&amp;N);
 	long long int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%lld",arr+i);
 	long long int ans = 0;
 	long long int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%lld\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -303,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission486326983.html b/src/lab/exp10/submission486326983.html
index 491e2258..06b4d78f 100644
--- a/src/lab/exp10/submission486326983.html
+++ b/src/lab/exp10/submission486326983.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -232,16 +234,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -249,35 +251,35 @@ <h1> Experiment 10  </h1>
 return 0;	
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -306,23 +308,22 @@ <h1> Experiment 10  </h1>
 78 74 41 73 3 6 80 86 77 83 
 </td><td>4
 </td><td>4
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission487105672.html b/src/lab/exp10/submission487105672.html
index 5e076021..7c3fad53 100644
--- a/src/lab/exp10/submission487105672.html
+++ b/src/lab/exp10/submission487105672.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int lengt;h=1;
 	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_lengt;h=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			lengt;h++;
 		else
 			lengt;h = 1;
-		if(max_lengt;h<lengt;h)
+		if(max_lengt;h&lt;lengt;h)
 			max_lengt;h = lengt;h;
 		num = curr_num;
 	}
@@ -245,57 +247,56 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:5:12: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:5:12: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:5:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:6:20: error: 'i' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:6:22: error: 'curr_num' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:15:3: error: 'else' without a previous 'if'<br/>e
 <br/> ^<br/>c:17:15: error: expected ')' before ';' token<br/>)
 <br/> ^<br/>c:21:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int lengt;h=1;
 	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_lengt;h=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			lengt;h++;
@@ -313,13 +314,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -332,10 +333,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission498781684.html b/src/lab/exp10/submission498781684.html
index 56a6348a..82e98b2d 100644
--- a/src/lab/exp10/submission498781684.html
+++ b/src/lab/exp10/submission498781684.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -246,35 +248,35 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -303,23 +305,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -332,10 +333,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission528504976.html b/src/lab/exp10/submission528504976.html
index 83633c35..8f0a71ae 100644
--- a/src/lab/exp10/submission528504976.html
+++ b/src/lab/exp10/submission528504976.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,35 +246,35 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission536961559.html b/src/lab/exp10/submission536961559.html
index 56a6348a..82e98b2d 100644
--- a/src/lab/exp10/submission536961559.html
+++ b/src/lab/exp10/submission536961559.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -246,35 +248,35 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -303,23 +305,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -332,10 +333,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission616671535.html b/src/lab/exp10/submission616671535.html
index c90f564a..4fc05b7f 100644
--- a/src/lab/exp10/submission616671535.html
+++ b/src/lab/exp10/submission616671535.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -249,45 +251,44 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -316,13 +317,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission623705546.html b/src/lab/exp10/submission623705546.html
index ce2a0658..1d35f977 100644
--- a/src/lab/exp10/submission623705546.html
+++ b/src/lab/exp10/submission623705546.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -232,16 +234,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_length=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_length<best[i])
+	if(longest_length&lt;best[i])
 		  longest_length = best[i];
 	
 }
@@ -250,35 +252,35 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -307,23 +309,22 @@ <h1> Experiment 10  </h1>
 78 74 41 73 3 6 80 86 77 83 
 </td><td>4
 </td><td>4
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -336,10 +337,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission627193306.html b/src/lab/exp10/submission627193306.html
index 1f48c0a7..f1458bb1 100644
--- a/src/lab/exp10/submission627193306.html
+++ b/src/lab/exp10/submission627193306.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,74 +220,72 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -297,10 +298,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission635825416.html b/src/lab/exp10/submission635825416.html
index 90ec9892..5d8a4b73 100644
--- a/src/lab/exp10/submission635825416.html
+++ b/src/lab/exp10/submission635825416.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,74 +220,72 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -297,10 +298,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission690124106.html b/src/lab/exp10/submission690124106.html
index 965e26f1..2c84c1c8 100644
--- a/src/lab/exp10/submission690124106.html
+++ b/src/lab/exp10/submission690124106.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -243,51 +245,50 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -305,13 +306,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission741930076.html b/src/lab/exp10/submission741930076.html
index 8b0d9349..6eb80002 100644
--- a/src/lab/exp10/submission741930076.html
+++ b/src/lab/exp10/submission741930076.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -245,35 +247,35 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -302,23 +304,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -331,10 +332,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission764801824.html b/src/lab/exp10/submission764801824.html
index 83633c35..8f0a71ae 100644
--- a/src/lab/exp10/submission764801824.html
+++ b/src/lab/exp10/submission764801824.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -244,35 +246,35 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Experiment 10  </h1>
 </td><td>2
 </td><td> Passed </td></tr><tr><td></td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission786099001.html b/src/lab/exp10/submission786099001.html
index e727680d..a6f5f3b9 100644
--- a/src/lab/exp10/submission786099001.html
+++ b/src/lab/exp10/submission786099001.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,82 +220,80 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
 		<td> Result </td>
 		<td> Remarks </td>
 		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></table></div> <!--contentLeft -->
+</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +306,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission810103484.html b/src/lab/exp10/submission810103484.html
index feef55fa..d9f4742e 100644
--- a/src/lab/exp10/submission810103484.html
+++ b/src/lab/exp10/submission810103484.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,27 +220,26 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int lengt;h=1;
 	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_lengt;h=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			lengt;h++;
 		else
 			lengt;h = 1;
-		if(max_lengt;h<lengt;h)
+		if(max_lengt;h&lt;lengt;h)
 			max_lengt;h = lengt;h;
 		num = curr_num;
 	}
@@ -247,57 +249,56 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:7:12: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:7:12: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:7:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:8:20: error: 'i' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:8:22: error: 'curr_num' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:17:3: error: 'else' without a previous 'if'<br/>e
 <br/> ^<br/>c:19:15: error: expected ')' before ';' token<br/>)
 <br/> ^<br/>c:23:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -310,10 +311,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission876847729.html b/src/lab/exp10/submission876847729.html
index 965e26f1..2c84c1c8 100644
--- a/src/lab/exp10/submission876847729.html
+++ b/src/lab/exp10/submission876847729.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
-		if(curr_num<num)
+		if(curr_num&lt;num)
 			length++;
 		else
 			length = 1;
-		if(max_length<length)
+		if(max_length&lt;length)
 			max_length = length;
 		num = curr_num;
 	}
@@ -243,51 +245,50 @@ <h1> Experiment 10  </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -305,13 +306,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission924187431.html b/src/lab/exp10/submission924187431.html
index 6dc32aef..b5ccceb7 100644
--- a/src/lab/exp10/submission924187431.html
+++ b/src/lab/exp10/submission924187431.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,82 +220,80 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
 		<td> Result </td>
 		<td> Remarks </td>
 		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></table></div> <!--contentLeft -->
+</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +306,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission925894823.html b/src/lab/exp10/submission925894823.html
index b1ca943d..d23a3fe3 100644
--- a/src/lab/exp10/submission925894823.html
+++ b/src/lab/exp10/submission925894823.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -231,16 +233,16 @@ <h1> Experiment 10  </h1>
 }
 
 int longest_lengt;h=0,i,j;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
    scanf("%d",arr+i);
-for(i=0;i< N;i++){
+for(i=0;i&lt; N;i++){
 	best[i] = 1;
-	for(j=0;j< i;j++){
-		if(arr[i]> arr[j])
-			best[i] = (best[i]>(best[j]+1))?best[i]:(best[j]+1);
+	for(j=0;j&lt; i;j++){
+		if(arr[i]&gt; arr[j])
+			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
 
 	}
-	if(longest_lengt;h<best[i])
+	if(longest_lengt;h&lt;best[i])
 		  longest_lengt;h = best[i];
 	
 }
@@ -249,50 +251,49 @@ <h1> Experiment 10  </h1>
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:12:19: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:12:19: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:12:19: note: each undeclared identifier is reported only once for each function it appears in<br/>c:12:23: error: 'i' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:12:25: error: 'j' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:22:18: error: expected ')' before ';' token<br/>)
 <br/> ^<br/>c:26:28: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -321,13 +322,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -340,10 +341,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission936950104.html b/src/lab/exp10/submission936950104.html
index b9a33f84..113b68fd 100644
--- a/src/lab/exp10/submission936950104.html
+++ b/src/lab/exp10/submission936950104.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-	#include<stdio.h>
+	#include&lt;stdio.h&gt;
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N],i,j;
-	for(i=0;i<N;i++)
+	for(i=0;i&lt;N;i++)
 		scanf("%d",arr+i);
 	int ans = 0;
 	int best[N];
-	for(i=0;i<N;i++){
+	for(i=0;i&lt;N;i++){
 		best[i] = 1;
-		for(j=0;j<i;j++)
-			if(arr[j]<arr[i])
-				best[i] = (best[i]>(best[j]+1))?best[i]:best[j]+1;
-		if(ans<best[i])
+		for(j=0;j&lt;i;j++)
+			if(arr[j]&lt;arr[i])
+				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
+		if(ans&lt;best[i])
 			ans = best[i];
 	}
 	printf("%d\n",ans);
@@ -249,35 +251,35 @@ <h1> Experiment 10  </h1>
 	
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -306,23 +308,22 @@ <h1> Experiment 10  </h1>
 78 74 41 73 3 6 80 86 77 83 
 </td><td>4
 </td><td>4
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/test.html b/src/lab/exp10/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp10/test.html
+++ b/src/lab/exp10/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/theory.html b/src/lab/exp10/theory.html
index aa5aa2d7..c33b13f7 100755
--- a/src/lab/exp10/theory.html
+++ b/src/lab/exp10/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,22 +35,20 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p></p><h3>Problem 1</h3>
+<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -60,16 +61,17 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
+		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index 326bed12..e72f330d 100644
--- a/src/lab/exp2/Experiment.html
+++ b/src/lab/exp2/Experiment.html
@@ -113,51 +113,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
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-	<footer>
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
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@@ -219,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index 52d0632a..a00e9ba7 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -109,52 +109,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><a href="http://209.211.220.
 			
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-	<footer>
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
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+	<p> <strong>Email:</strong> support@vlab.co.in </p>
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 </div> <!-- top div -->
@@ -215,4 +210,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index d03aaa9e..900a22be 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -119,52 +119,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
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@@ -224,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 556fc7d1..2d660d02 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -1,2 +1,7 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index 2e599feb..e71bc2c5 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -1,19 +1,23 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare and scan N,
+-&gt;declare and scan N,
   do check the limits of N
-->declare a variable to store
+-&gt;declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
-->Use the ideas from the hints
+-&gt;Use the ideas from the hints
   section to calculate the sum of
   divisors of large number
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index d01816ad..9b613bf9 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare and scan N,
+-&gt;declare and scan N,
   do check the limits of N
-->declare a variable to store
+-&gt;declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
-->sum = 0
+-&gt;sum = 0
   for i=2;i&lt;=n/i;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index 5c4ac523..c44479d9 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
-->long long N,sum=0;
-  scanf("%lld",&N);
-->int temp = sqrt(N); 
-->sum = 0
+-&gt;long long N,sum=0;
+  scanf("%lld",&amp;N);
+-&gt;int temp = sqrt(N); 
+-&gt;sum = 0
   for i=2;i&lt;=temp;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 6d11bbf3..8acead46 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
@@ -28,3 +31,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index 2bfd964d..0d2041d6 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp2/Hints2/Hint_0.html
+++ b/src/lab/exp2/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index 94a2d3c1..2da71983 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->until a,b are not both 1
+-&gt;declare and scan a,b
+-&gt;until a,b are not both 1
   try to reduce them to 1
   by calculating q, E at each step
-->while calculating q's in the above
+-&gt;while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 94dbe047..98dd6066 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
+++ b/src/lab/exp2/Hints2/Hint_2.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->
+-&gt;declare and scan a,b
+-&gt;
   while a and b are not 1 
 	 calculate q and E
 	 and re-calculate 
 	 a,b based on E.
-->while calculating q's in the above
+-&gt;while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index 08cda95e..060273bc 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
+++ b/src/lab/exp2/Hints2/Hint_3.html
@@ -1,14 +1,18 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->
+-&gt;declare and scan a,b
+-&gt;
   while a and b are not 1 
 	 q = step(a/b)
 	 E = b /(a-b*q)
 	 Re calculate 
 	 a,b based on E.
-->
+-&gt;
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 54bc0c85..640bcdf9 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -24,3 +27,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index 54bc0c85..640bcdf9 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -24,3 +27,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index d0fb2bdf..65df8aed 100644
--- a/src/lab/exp2/Introduction.html
+++ b/src/lab/exp2/Introduction.html
@@ -168,53 +168,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -276,4 +270,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index 95c5648e..01f916a6 100644
--- a/src/lab/exp2/Manual.html
+++ b/src/lab/exp2/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -221,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index e452225e..fdf7bf68 100644
--- a/src/lab/exp2/Objective.html
+++ b/src/lab/exp2/Objective.html
@@ -113,52 +113,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-		<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -220,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 916523e9..92041156 100644
--- a/src/lab/exp2/Procedure.html
+++ b/src/lab/exp2/Procedure.html
@@ -123,53 +123,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -231,4 +225,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
index cf315b60..c4d29576 100644
--- a/src/lab/exp2/Quizzes.html
+++ b/src/lab/exp2/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
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+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+	</div>
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+</div>
+</footer>
 
 
 
@@ -435,4 +429,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index 42327e2b..32e09134 100644
--- a/src/lab/exp2/Theory.html
+++ b/src/lab/exp2/Theory.html
@@ -151,52 +151,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -258,4 +253,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp2/bk_index.html b/src/lab/exp2/bk_index.html
index b96e8068..187943a9 100755
--- a/src/lab/exp2/bk_index.html
+++ b/src/lab/exp2/bk_index.html
@@ -1,95 +1,99 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1.html b/src/lab/exp2/content1.html
index 3c1b38ab..26b5bbcc 100755
--- a/src/lab/exp2/content1.html
+++ b/src/lab/exp2/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Beauty of Numbers</a> </h1>
+			<h1> Beauty of Numbers </h1>
 			</div>
 
 		</div>
@@ -215,3 +218,4 @@ <h1> Beauty of Numbers</a> </h1>
 
 <p>Please insert your code here</p> -->
 
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1_1.html b/src/lab/exp2/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp2/content1_1.html
+++ b/src/lab/exp2/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1_2.html b/src/lab/exp2/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp2/content1_2.html
+++ b/src/lab/exp2/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1_3.html b/src/lab/exp2/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp2/content1_3.html
+++ b/src/lab/exp2/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content2.html b/src/lab/exp2/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp2/content2.html
+++ b/src/lab/exp2/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content2_1.html b/src/lab/exp2/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp2/content2_1.html
+++ b/src/lab/exp2/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content3.html b/src/lab/exp2/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp2/content3.html
+++ b/src/lab/exp2/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content3_1.html b/src/lab/exp2/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp2/content3_1.html
+++ b/src/lab/exp2/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content4.html b/src/lab/exp2/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp2/content4.html
+++ b/src/lab/exp2/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5.html b/src/lab/exp2/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp2/content5.html
+++ b/src/lab/exp2/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5_1.html b/src/lab/exp2/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp2/content5_1.html
+++ b/src/lab/exp2/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5_2.html b/src/lab/exp2/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp2/content5_2.html
+++ b/src/lab/exp2/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5_3.html b/src/lab/exp2/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp2/content5_3.html
+++ b/src/lab/exp2/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/default.html b/src/lab/exp2/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp2/default.html
+++ b/src/lab/exp2/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/edit_area/plugins/charmap/popup.html b/src/lab/exp2/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp2/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp2/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/furtherReadings.html b/src/lab/exp2/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp2/furtherReadings.html
+++ b/src/lab/exp2/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/lab.html b/src/lab/exp2/lab.html
index ebf5c798..fc575c50 100755
--- a/src/lab/exp2/lab.html
+++ b/src/lab/exp2/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Beauty of Numbers  </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Beauty of Numbers  </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/lab_test.html b/src/lab/exp2/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp2/lab_test.html
+++ b/src/lab/exp2/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/objective.html b/src/lab/exp2/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp2/objective.html
+++ b/src/lab/exp2/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/previndex.html b/src/lab/exp2/previndex.html
index 144dbe7f..be4637d5 100755
--- a/src/lab/exp2/previndex.html
+++ b/src/lab/exp2/previndex.html
@@ -1,95 +1,99 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/prob_desc.html b/src/lab/exp2/prob_desc.html
index ea85ee29..796dc0d6 100755
--- a/src/lab/exp2/prob_desc.html
+++ b/src/lab/exp2/prob_desc.html
@@ -1,60 +1,64 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-					</li>	
-				</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+					</li>	
+				</ol></div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/quiz.html b/src/lab/exp2/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp2/quiz.html
+++ b/src/lab/exp2/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission185550271.html b/src/lab/exp2/submission185550271.html
index efa41343..83d12869 100644
--- a/src/lab/exp2/submission185550271.html
+++ b/src/lab/exp2/submission185550271.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -247,47 +249,46 @@ <h1> Experiment 2 </a> </h1>
 		printf("NO\n");
 	return 0;</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:27:2: error: expected declaration or statement at end of input<br/>0;<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/><br/>c: In function 'main':<br/>c:27:2: error: expected declaration or statement at end of input<br/>0;<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
@@ -313,13 +314,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -332,10 +333,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission197174454.html b/src/lab/exp2/submission197174454.html
index cc031ca1..57d51301 100644
--- a/src/lab/exp2/submission197174454.html
+++ b/src/lab/exp2/submission197174454.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -248,51 +250,50 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +306,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission211548030.html b/src/lab/exp2/submission211548030.html
index f939afd9..a0e0753f 100644
--- a/src/lab/exp2/submission211548030.html
+++ b/src/lab/exp2/submission211548030.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,12 +220,11 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -245,37 +247,37 @@ <h1> Experiment 2 </a> </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission457897134.html b/src/lab/exp2/submission457897134.html
index d0a9cda0..4bf369de 100644
--- a/src/lab/exp2/submission457897134.html
+++ b/src/lab/exp2/submission457897134.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -246,35 +248,35 @@ <h1> Experiment 2 </a> </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -282,9 +284,9 @@ <h1> Experiment 2 </a> </h1>
 		<td> Remarks </td>
 		</tr><tr><td>6 
 </td><td>YES
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></table></div> <!--contentLeft -->
+</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -292,13 +294,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -311,10 +313,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission502952122.html b/src/lab/exp2/submission502952122.html
index 1349605c..0f490661 100644
--- a/src/lab/exp2/submission502952122.html
+++ b/src/lab/exp2/submission502952122.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
-#include<math.h>
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -250,35 +252,35 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 	}</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -287,9 +289,9 @@ <h1> Experiment 2 </a> </h1>
 		</tr><tr><td>6 
 </td><td>YES
 </td><td>YES
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -297,13 +299,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -316,10 +318,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission528085955.html b/src/lab/exp2/submission528085955.html
index 4899a986..8c842c82 100644
--- a/src/lab/exp2/submission528085955.html
+++ b/src/lab/exp2/submission528085955.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
-#include<math.h>
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -249,35 +251,35 @@ <h1> Experiment 2 </a> </h1>
 	return 0;		
 	}</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -307,9 +309,9 @@ <h1> Experiment 2 </a> </h1>
 </td><td> Passed </td></tr><tr><td>10201
 </td><td>NO
 </td><td>NO
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -317,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -336,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission604289628.html b/src/lab/exp2/submission604289628.html
index a864d3a6..9f65e602 100644
--- a/src/lab/exp2/submission604289628.html
+++ b/src/lab/exp2/submission604289628.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -248,37 +250,37 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -286,13 +288,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +307,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission682851925.html b/src/lab/exp2/submission682851925.html
index e702c0ec..169471b5 100644
--- a/src/lab/exp2/submission682851925.html
+++ b/src/lab/exp2/submission682851925.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<math.h>
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -249,37 +251,37 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 	}</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -287,13 +289,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -306,10 +308,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission785097604.html b/src/lab/exp2/submission785097604.html
index b68f2b94..f3f5bb17 100644
--- a/src/lab/exp2/submission785097604.html
+++ b/src/lab/exp2/submission785097604.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,13 +220,12 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -246,35 +248,35 @@ <h1> Experiment 2 </a> </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -292,23 +294,22 @@ <h1> Experiment 2 </a> </h1>
 </td><td> Passed </td></tr><tr><td>6 10
 </td><td>0 1 1 1
 </td><td>0 1 1 1
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -321,10 +322,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission900840518.html b/src/lab/exp2/submission900840518.html
index a9ade10d..ac26f55e 100644
--- a/src/lab/exp2/submission900840518.html
+++ b/src/lab/exp2/submission900840518.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,12 +220,11 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -245,44 +247,43 @@ <h1> Experiment 2 </a> </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -307,13 +308,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -326,10 +327,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission947863660.html b/src/lab/exp2/submission947863660.html
index 44218193..dd120d99 100644
--- a/src/lab/exp2/submission947863660.html
+++ b/src/lab/exp2/submission947863660.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<math.h>
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -249,35 +251,35 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -286,23 +288,22 @@ <h1> Experiment 2 </a> </h1>
 		</tr><tr><td>239 51
 </td><td>4 1 2 5 2
 </td><td>NO
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -315,10 +316,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission972551679.html b/src/lab/exp2/submission972551679.html
index c0e64163..4ebb8fb2 100644
--- a/src/lab/exp2/submission972551679.html
+++ b/src/lab/exp2/submission972551679.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
-#include<math.h>
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -249,35 +251,35 @@ <h1> Experiment 2 </a> </h1>
 	return 0;
 }		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -307,9 +309,9 @@ <h1> Experiment 2 </a> </h1>
 </td><td> Passed </td></tr><tr><td>10201
 </td><td>NO
 </td><td>NO
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -317,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -336,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission993675339.html b/src/lab/exp2/submission993675339.html
index 463ac052..8be553db 100644
--- a/src/lab/exp2/submission993675339.html
+++ b/src/lab/exp2/submission993675339.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 2 </a> </h1>
+			<h1> Experiment 2  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 2 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 2 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
 	
-	for(i=2;i<=temp;i++){
+	for(i=2;i&lt;=temp;i++){
 		if(n%i==0)
 			sum_factors+=i+(n/i);
 	}
-	if(n>1) //adding 1 to the sum of factors if n>1
+	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
 		sum_factors++;
 
 	/*if the number is a perfect square then 
@@ -248,37 +250,37 @@ <h1> Experiment 2 </a> </h1>
 	return 0;		
 	}</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -286,13 +288,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -305,10 +307,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/test.html b/src/lab/exp2/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp2/test.html
+++ b/src/lab/exp2/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/theory.html b/src/lab/exp2/theory.html
index a1f6e922..73a82d12 100755
--- a/src/lab/exp2/theory.html
+++ b/src/lab/exp2/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,12 +35,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-  P is divisor of Q, if dividing Q by P does not leave any remainder. A number, N, is called a perfect number, if the sum of all such divisors of N(not including N) is equal to N. 6 is the smallest perfect number. It's factors are 1,2,3 and their sum is 1+2+3=6. So, to check whether a number, say N, is perfect or not, it is required to find all the divisors of that number. The easiest way to do this is to check every number form 2 to N-1 if it is dividing N completely or not, and take the sum of all the divisor. While this may work well for small numbers, it would be very time consuming for large numbers.
+        <p></p><h3>Problem 1</h3>
+<pre>  P is divisor of Q, if dividing Q by P does not leave any remainder. A number, N, is called a perfect number, if the sum of all such divisors of N(not including N) is equal to N. 6 is the smallest perfect number. It's factors are 1,2,3 and their sum is 1+2+3=6. So, to check whether a number, say N, is perfect or not, it is required to find all the divisors of that number. The easiest way to do this is to check every number form 2 to N-1 if it is dividing N completely or not, and take the sum of all the divisor. While this may work well for small numbers, it would be very time consuming for large numbers.
 
         A better solutin can be built by observing that many numbers can easily be ruled out as not divisors. For instance, all the numbers between N/2 and N cannot be divisors. Similarly, all numbers between N/2 and N/3 cannot be divisors of N, and so on. So, at each step we can check two numbers to be divisors of N and at the same time we can eliminate a fraction of the numbers less than N as not divisors and putting an upper bound on the next biggest possible divisor. Lets apply this tactic to find the divisors of 60.
 
@@ -59,12 +61,11 @@ <h2>Theory</h2>
 
 	
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Consider the fraction A/B. We use two variables A,B to represent a fraction. Lets see how can we solve the
-	problem. A/B = q + 1/E. How can we find q,E given A,B such that E&gt1. From math basics any fraction can be
-	expressed A/B = step(A/B) + frac(A/B). frac(A/B)&lt 1 so 1/frac(A/B) &gt 1. Thus we shall choose q as step(A/B)
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Consider the fraction A/B. We use two variables A,B to represent a fraction. Lets see how can we solve the
+	problem. A/B = q + 1/E. How can we find q,E given A,B such that E&gt;1. From math basics any fraction can be
+	expressed A/B = step(A/B) + frac(A/B). frac(A/B)&lt; 1 so 1/frac(A/B) &gt; 1. Thus we shall choose q as step(A/B)
 	and E as 1/frac(A/B). Now we shall see programatically how can we represent and E as we need to do the same 
 	operation on E. Obviosuly  from the above equation E = B/(A-B*q)  which means E is also a fraction. Thus 
 	we express E in terms of some (x,y) where x = B and y = A-B*q and do the same operation as we have done on (A,B).
@@ -72,12 +73,13 @@ <h2>Theory</h2>
 
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 56670d30..2342bf61 100644
--- a/src/lab/exp3/Experiment.html
+++ b/src/lab/exp3/Experiment.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,53 +113,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -215,4 +214,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index 84e2c895..2998f3fc 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -104,53 +109,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><a href="http://209.211.220.20
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
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+	<footer id="footer"><div class="footer-top" id="contact">
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+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
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+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
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+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	    <i class="fa fa-facebook"></i>
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+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
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+</footer>
 
 
 
@@ -211,4 +210,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index f46800ec..b35c4095 100644
--- a/src/lab/exp3/Further Readings.html	
+++ b/src/lab/exp3/Further Readings.html	
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
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-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -110,53 +115,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-
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- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
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+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -216,4 +215,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index 4fd70b87..1db97b3e 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->Implement the logic discussed in the 
+ -&gt;Implement the logic discussed in the 
   theory section
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index a054f737..ae4f0fec 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->while n is not a single digit number
+ -&gt;while n is not a single digit number
     n = sum_digits(n)
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index 2b359ca0..83229a0b 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Take care of data type of n(parameter) 
+-&gt;Take care of data type of n(parameter) 
   while passing arguments 
 
 int sum_digits(n):
 	return n?(n%10)+sum_digits(n/10):0
 
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->while n is not a single digit number
+ -&gt;while n is not a single digit number
     n = sum_digits(n)
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 39a6b8f5..9c9ca233 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -9,7 +12,7 @@
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -25,3 +28,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
+++ b/src/lab/exp3/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index 09158cbc..333f83e2 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- ->Implement the multiplication logic
+ -&gt;Implement the multiplication logic
    of multiplying a large number with
    a digit
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index 7104ac35..47ec8b03 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- ->Keep track of just the last digit
+ -&gt;Keep track of just the last digit
    generated and the carry and update
    the last digit and carry in the loop
    after multiplying last digit with 
    the units digit
 
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 3c33b030..42b69fe8 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- -> int value = (multiplication_digit*unit_digit+carry)
+ -&gt; int value = (multiplication_digit*unit_digit+carry)
     arr[index]=value%10 //store the digit
     carry = value/10
     multiplication_digit = arr[index++]
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index f205610f..af2119a4 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -23,7 +26,7 @@
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index f205610f..af2119a4 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -23,7 +26,7 @@
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 7fed6366..29658a9c 100644
--- a/src/lab/exp3/Introduction.html
+++ b/src/lab/exp3/Introduction.html
@@ -1,31 +1,35 @@
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -33,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -47,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -80,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -99,68 +103,68 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 <p> 
 Many students in some class or either might have been interested in Number theory as it is so much fun in solving those riddles.Here we present two problems to refresh your skills. Hope you will love them. And the difference is that you may not have learnt computer programming back then but you know some computer programming now, so you can use the computer and program the task. 
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not. This was very popular before your mod operator was invented. The solution is simple, if you add the digits of the number repeatedly and finally get 9, then the given number is divisible by 9, else it is not divisible by 9. For example,
 
 </p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single positive integer(&lt; 10<sup>10</sup>). Use long long for the number.
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 12101<br>
-Output: NO<br>
-Input: 9009 <br>
-Output: YES<br>
+Input: 12101<br/>
+Output: NO<br/>
+Input: 9009 <br/>
+Output: YES<br/>
 </p>
 <p align="right"></p>
-<br><hr>
-<br>
+<br/><hr/>
+<br/>
 <h2>Problem 2:</h2>
 <p> 
 A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
 the result is the number with its decimal digits rotated to the right, where the units digit becoming
 its high-order digit. For example, 102564 is a circular number because of the multiplication:
-<br>
+<br/>
 
-102564<br>
-*4<br>
--------<br>
-410256<br>
--------<br>
-<br><br><br><br><br><br></p>
-<br><hr>
-<p><b>Input Specification</b></p><br>
+102564<br/>
+*4<br/>
+-------<br/>
+410256<br/>
+-------<br/>
+<br/><br/><br/><br/><br/><br/></p>
+<br/><hr/>
+<p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single postive integer N(&lt; 10).
 </p>
-<br><hr>
-<p><b>Output Specification</b></p><br>
+<br/><hr/>
+<p><b>Output Specification</b></p><br/>
 <p>
 Output must contain a smallest circular positive number whose units digit must be N.
 </p>
-<br><hr>
-<p><b>Sample Input and Output</b></p><br>
+<br/><hr/>
+<p><b>Sample Input and Output</b></p><br/>
 <p>
-Input: 2  <br>
-Output:105263157894736842<br>
-Input: 4<br>
-Output: 102564<br>
+Input: 2  <br/>
+Output:105263157894736842<br/>
+Input: 4<br/>
+Output: 102564<br/>
 Please note that result may not fit even in long long(64 bit integer).
 </p>
 <p align="right"></p>
-<br><hr>
-<br><br><br><br><br><br><br><br><br><br></div>						</div>
+<br/><hr/>
+<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -170,52 +174,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -276,4 +275,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index 3561d12a..ca1a7920 100644
--- a/src/lab/exp3/Manual.html
+++ b/src/lab/exp3/Manual.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,53 +113,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -215,4 +214,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Objective.html b/src/lab/exp3/Objective.html
index b8f65d04..040e9a11 100644
--- a/src/lab/exp3/Objective.html
+++ b/src/lab/exp3/Objective.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -108,52 +113,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -214,4 +214,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Procedure.html b/src/lab/exp3/Procedure.html
index 67a3173f..53c357bc 100644
--- a/src/lab/exp3/Procedure.html
+++ b/src/lab/exp3/Procedure.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -116,53 +121,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -223,4 +222,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Quizzes.html b/src/lab/exp3/Quizzes.html
index dce78a33..db61940d 100644
--- a/src/lab/exp3/Quizzes.html
+++ b/src/lab/exp3/Quizzes.html
@@ -1,27 +1,32 @@
-<!DOCTYPE html><html lang="en"><head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<!DOCTYPE html>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
-    <script type="text/javascript" src="quiz.js"></script>
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
+    <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src="tabs.js"></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
 
@@ -55,7 +60,7 @@
 
 
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -63,13 +68,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -77,7 +82,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -86,15 +91,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -110,17 +115,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 
 
 
@@ -192,110 +197,110 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question1">a) initialization statements<br>
-<input type="radio" value="b" name="question1">b) Loop body<br>
-<input type="radio" value="c" name="question1">c) test condition<br>
-<input type="radio" value="d" name="question1">d) update statements<br>
+<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
+<input name="question1" type="radio" value="b"/>b) Loop body<br/>
+<input name="question1" type="radio" value="c"/>c) test condition<br/>
+<input name="question1" type="radio" value="d"/>d) update statements<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input type="radio" value="a" name="question2">a) an if statement<br>
-<input type="radio" value="b" name="question2">b) a for loop<br>
-<input type="radio" value="c" name="question2">c) a program<br>
-<input type="radio" value="d" name="question2">d) the main( ) function<br>
+<input name="question2" type="radio" value="a"/>a) an if statement<br/>
+<input name="question2" type="radio" value="b"/>b) a for loop<br/>
+<input name="question2" type="radio" value="c"/>c) a program<br/>
+<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input type="radio" value="a" name="question3">a) only once<br>
-<input type="radio" value="b" name="question3">b) At Least Once<br>
-<input type="radio" value="c" name="question3">c) More than once<br>
-<input type="radio" value="d" name="question3">d) None of the above<br>
+<input name="question3" type="radio" value="a"/>a) only once<br/>
+<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
+<input name="question3" type="radio" value="c"/>c) More than once<br/>
+<input name="question3" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input type="radio" value="a" name="question4">a) Initialization, execution of body, testing<br>
-<input type="radio" value="b" name="question4">b) Execution of body, initialization, testing<br>
-<input type="radio" value="c" name="question4">c) Initialization, testing, execution of body<br>
-<input type="radio" value="d" name="question4">d) None of the above<br>
+<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
+<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
+<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
+<input name="question4" type="radio" value="d"/>d) None of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question5">a) for<br>
-<input type="radio" value="b" name="question5">b) while<br>
-<input type="radio" value="c" name="question5">c) do-while<br>
-<input type="radio" value="d" name="question5">d) No looping peocess check condition at the end<br>
+<input name="question5" type="radio" value="a"/>a) for<br/>
+<input name="question5" type="radio" value="b"/>b) while<br/>
+<input name="question5" type="radio" value="c"/>c) do-while<br/>
+<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question6">a) the end of the program<br>
-<input type="radio" value="b" name="question6">b) the first statement after the loop<br>
-<input type="radio" value="c" name="question6">c) the statement following the continue statement<br>
-<input type="radio" value="d" name="question6">d) the next iteration of the loop<br>
+<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
+<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
+<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
+<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question7">a) <code>i = i + i;</code><br>
-<input type="radio" value="b" name="question7">b) <code>i = i + 1;</code><br>
-<input type="radio" value="c" name="question7">c) <code>i = i - 1;</code><br>
-<input type="radio" value="d" name="question7">d) <code> i - - ;</code><br>
+<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
+<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
+<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
+<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input type="radio" value="a" name="question8">a) recapitulation <br>
-<input type="radio" value="b" name="question8">b) tintinabulation <br>
-<input type="radio" value="c" name="question8">c) iteration<br>
-<input type="radio" value="d" name="question8">d) reiteration<br>
+<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
+<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
+<input name="question8" type="radio" value="c"/>c) iteration<br/>
+<input name="question8" type="radio" value="d"/>d) reiteration<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input type="radio" value="a" name="question9">a) for<br>
-<input type="radio" value="b" name="question9">b) while<br>
-<input type="radio" value="c" name="question9">c) do-while<br>
-<input type="radio" value="d" name="question9">d) all of the above<br>
+<input name="question9" type="radio" value="a"/>a) for<br/>
+<input name="question9" type="radio" value="b"/>b) while<br/>
+<input name="question9" type="radio" value="c"/>c) do-while<br/>
+<input name="question9" type="radio" value="d"/>d) all of the above<br/>
 </div>
 
-<br>
+<br/>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input type="radio" value="a" name="question10">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br>
-<input type="radio" value="b" name="question10">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
-<input type="radio" value="c" name="question10">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
-<input type="radio" value="d" name="question10">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
+<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br/>
+<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
+<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
 
 </div>
 
@@ -303,7 +308,7 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 
 <form>
 <div align="center">
-<input type="button" value="Grade Me!" name="B1" onclick="gradeit()"> <input type="button" value="Reset" name="B2" onclick="document.myquiz.reset()"></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
 </form>
 
 <p></p>
@@ -317,53 +322,47 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white"> Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" class="text-normal-gray-small nounderline" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;">Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg" class="text-a-lightgreen nounderline" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -426,4 +425,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index ade89da0..70ad7f5a 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -1,30 +1,35 @@
-<!DOCTYPE html><html lang="en"><head>
+<!DOCTYPE html>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+    <link href="../css/style.css" rel="stylesheet"/>
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
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@@ -32,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -46,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -55,15 +60,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/" class="menu-a">HOME</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html" class="menu-a menu-a-active">ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a">PARTNERS</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a">CONTACT</a>
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,17 +84,17 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a">Computer Science &amp; Engineering</a> →<a href="../Introduction.html" class="sidebar-a">Problem Solving Lab</a>&nbsp;→<a href="../List of experiments.html" class="sidebar-a">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab" class="sidebar-a"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -100,28 +105,28 @@ <h2>Problem 1</h2>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
 </p>
 <p>
-N=W*1000*X+100+Y*10+Z<br>
-eg: For N=3548<br>
-N=3*1000+5*100+4*10+8<br>
-<br><br><br></p>
+N=W*1000*X+100+Y*10+Z<br/>
+eg: For N=3548<br/>
+N=3*1000+5*100+4*10+8<br/>
+<br/><br/><br/></p>
 <p>
 So, clearly the remainder after divison with 9 depends upon remainder after division with 3000, 500, 40 and 8, which are 3, 5, 4, and 8 respectively. Hence, the divisibility test for 9 states that a number is divisible by 9 if the sum digits of the number is divisible by 9. How to check whether sum of the digits is divisible by nine? Keep on doing the same test on the sum until the problem becomes trivial.
 </p>
 <p>
-So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br>
-346 gives 6 as the remainder  SUM=6<br>
-34 gives 4 as the remainder   SUM=10<br>
-3 gives 3 as remainder        SUM=13<br>
-<br><br><br><br></p>
+So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br/>
+346 gives 6 as the remainder  SUM=6<br/>
+34 gives 4 as the remainder   SUM=10<br/>
+3 gives 3 as remainder        SUM=13<br/>
+<br/><br/><br/><br/></p>
 <p>
-Now repeat the same procedure with SUM=13<br>
-13 gives 3 as the remainder   SUM=3<br>
-1 gives 1 as the remainder    SUM=4<br>
-Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br>
-<br><br><br><br></p>
+Now repeat the same procedure with SUM=13<br/>
+13 gives 3 as the remainder   SUM=3<br/>
+1 gives 1 as the remainder    SUM=4<br/>
+Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br/>
+<br/><br/><br/><br/></p>
 
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Suppose the number we require is say (X[0],X[1],...,X[N]). We dont know what X[0] ,X[1],...X[N-1] are
@@ -131,51 +136,51 @@ <h2>Problem 2</h2>
 <b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which
 we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time. So we carry on like this.
-<br> <br>
-Step1: xxxxxx4  <br>
-*4<br>
-------<br>
-6 and carry = 1<br>
-------<br>
-Step2:<br>
-xxxxx64<br>
-*4<br>
-------<br>
-56 and carry = 2<br>
-------<br>
-Step3:<br>
-xxxx564<br>
-*4<br>
-------<br>
-256 and carry = 2<br>
-------<br>
-Step4:<br>
-xxx2564<br>
-*4<br>
-------<br>
-0256 and carry = 1<br>
-------<br>
-Step5:<br>
-xx02564<br>
-*4<br>
-------<br>
-10256 and carry = 0<br>
-------<br>
-Step6:<br>
-x102564<br>
-*4<br>
-------<br>
-410256 and carry = 0<br>
-------<br>
+<br/> <br/>
+Step1: xxxxxx4  <br/>
+*4<br/>
+------<br/>
+6 and carry = 1<br/>
+------<br/>
+Step2:<br/>
+xxxxx64<br/>
+*4<br/>
+------<br/>
+56 and carry = 2<br/>
+------<br/>
+Step3:<br/>
+xxxx564<br/>
+*4<br/>
+------<br/>
+256 and carry = 2<br/>
+------<br/>
+Step4:<br/>
+xxx2564<br/>
+*4<br/>
+------<br/>
+0256 and carry = 1<br/>
+------<br/>
+Step5:<br/>
+xx02564<br/>
+*4<br/>
+------<br/>
+10256 and carry = 0<br/>
+------<br/>
+Step6:<br/>
+x102564<br/>
+*4<br/>
+------<br/>
+410256 and carry = 0<br/>
+------<br/>
 
 At step 6, you can observe that the number is exactly the circular number. So we stop doing it.
 The stopping criteria is simple. The carry must be 0 and the units digit with which we multiply
 must be same as the last digit generated in the product. Here multiplication digit is 4. Thus the output is 102564.
 
 
-<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br></p>
+<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></p>
 <p align="right"></p>
-<br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -185,53 +190,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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+	<footer id="footer"><div class="footer-top" id="contact">
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+        <h4>Community Links</h4>
+        <p>
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+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
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+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+	  </a>
+	</div>
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+</footer>
 
 
 
@@ -292,4 +291,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1.html b/src/lab/exp3/content1.html
index 4a126c4d..cf7d0546 100755
--- a/src/lab/exp3/content1.html
+++ b/src/lab/exp3/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> More on Numbers </a> </h1>
+			<h1> More on Numbers  </h1>
 			</div>
 
 		</div>
@@ -215,3 +218,4 @@ <h1> More on Numbers </a> </h1>
 
 <p>Please insert your code here</p> -->
 
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1_1.html b/src/lab/exp3/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp3/content1_1.html
+++ b/src/lab/exp3/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1_2.html b/src/lab/exp3/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp3/content1_2.html
+++ b/src/lab/exp3/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1_3.html b/src/lab/exp3/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp3/content1_3.html
+++ b/src/lab/exp3/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content2.html b/src/lab/exp3/content2.html
index 01af13b3..5c6a1768 100755
--- a/src/lab/exp3/content2.html
+++ b/src/lab/exp3/content2.html
@@ -1,10 +1,14 @@
-
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content2_1.html b/src/lab/exp3/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp3/content2_1.html
+++ b/src/lab/exp3/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content3.html b/src/lab/exp3/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp3/content3.html
+++ b/src/lab/exp3/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content3_1.html b/src/lab/exp3/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp3/content3_1.html
+++ b/src/lab/exp3/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content4.html b/src/lab/exp3/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp3/content4.html
+++ b/src/lab/exp3/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5.html b/src/lab/exp3/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp3/content5.html
+++ b/src/lab/exp3/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5_1.html b/src/lab/exp3/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp3/content5_1.html
+++ b/src/lab/exp3/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5_2.html b/src/lab/exp3/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp3/content5_2.html
+++ b/src/lab/exp3/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5_3.html b/src/lab/exp3/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp3/content5_3.html
+++ b/src/lab/exp3/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/default.html b/src/lab/exp3/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp3/default.html
+++ b/src/lab/exp3/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/edit_area/plugins/charmap/popup.html b/src/lab/exp3/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp3/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp3/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/furtherReadings.html b/src/lab/exp3/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp3/furtherReadings.html
+++ b/src/lab/exp3/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/lab.html b/src/lab/exp3/lab.html
index 6c94e89f..2ae942dc 100755
--- a/src/lab/exp3/lab.html
+++ b/src/lab/exp3/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> More on Numbers </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> More on Numbers </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/lab_test.html b/src/lab/exp3/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp3/lab_test.html
+++ b/src/lab/exp3/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/objective.html b/src/lab/exp3/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp3/objective.html
+++ b/src/lab/exp3/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/prob_desc.html b/src/lab/exp3/prob_desc.html
index 486c7906..c91cda99 100755
--- a/src/lab/exp3/prob_desc.html
+++ b/src/lab/exp3/prob_desc.html
@@ -1,69 +1,72 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-				<ol>
-						<li> <h2>Problem 1:</h2>
-Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
-(This was very popular before your mod operator was invented :-)) If you add the digits of the number
-repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
-example
-
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 12101<br />
-						Output: NO<br />
-						Input: 9009 <br />
-						Output: YES<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
-  the result is the number with its decimal digits rotated to the right, where the units digit becoming
-  its high-order digit. For example, 102564 is a circular number because of the multiplication:
-  <pre>
-				102564
-      				      *4
-				-------
-				410256
-				-------
-</pre>
-	
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a single postive integer N( &lt 10). 
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-				Output must contain a smallest circular positive number whose units digit must be N.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2  <br />
-						Output:105263157894736842<br />
-						Input: 4<br />
-						Output: 102564<br/>
-						<center>
-						Please note that result may not fit even in long long(64 bit integer).
-						</center>
-					
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+				<ol>
+						<li> <h2>Problem 1:</h2>
+Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
+(This was very popular before your mod operator was invented :-)) If you add the digits of the number
+repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
+example
+
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 12101<br/>
+						Output: NO<br/>
+						Input: 9009 <br/>
+						Output: YES<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
+  the result is the number with its decimal digits rotated to the right, where the units digit becoming
+  its high-order digit. For example, 102564 is a circular number because of the multiplication:
+  <pre>				102564
+      				      *4
+				-------
+				410256
+				-------
+</pre>
+	
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a single postive integer N( &lt; 10). 
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+				Output must contain a smallest circular positive number whose units digit must be N.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2  <br/>
+						Output:105263157894736842<br/>
+						Input: 4<br/>
+						Output: 102564<br/>
+						<center>
+						Please note that result may not fit even in long long(64 bit integer).
+						</center>
+					
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/quiz.html b/src/lab/exp3/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp3/quiz.html
+++ b/src/lab/exp3/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission055278960.html b/src/lab/exp3/submission055278960.html
index 9fa15d35..49cc4ab3 100644
--- a/src/lab/exp3/submission055278960.html
+++ b/src/lab/exp3/submission055278960.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-	#include<stdio.h>
+	#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -230,11 +232,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -245,36 +247,36 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -295,23 +297,22 @@ <h1> Experiment 3 </a> </h1>
 </td><td> Passed </td></tr><tr><td>3231
 </td><td>YES
 </td><td>YES
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission212453558.html b/src/lab/exp3/submission212453558.html
index 5a5f4e5c..f127067c 100644
--- a/src/lab/exp3/submission212453558.html
+++ b/src/lab/exp3/submission212453558.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,10 +208,10 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
@@ -217,9 +220,8 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -229,11 +231,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -245,42 +247,41 @@ <h1> Experiment 3 </a> </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -290,7 +291,7 @@ <h4> HINTS </h4><br>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -309,13 +310,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -328,10 +329,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission263772451.html b/src/lab/exp3/submission263772451.html
index 02908deb..109f2c1f 100644
--- a/src/lab/exp3/submission263772451.html
+++ b/src/lab/exp3/submission263772451.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -244,7 +246,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -252,56 +254,55 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:17:16: error: 'mult' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:17:16: error: 'mult' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:17:16: note: each undeclared identifier is reported only once for each function it appears in<br/>c:17:20: error: expected ')' before ';' token<br/>;
 <br/> ^<br/>c:20:8: error: 'iplication_digit' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:22:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -314,10 +315,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission337734160.html b/src/lab/exp3/submission337734160.html
index f1bce025..b3789c83 100644
--- a/src/lab/exp3/submission337734160.html
+++ b/src/lab/exp3/submission337734160.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -230,11 +232,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -246,36 +248,36 @@ <h1> Experiment 3 </a> </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -296,23 +298,22 @@ <h1> Experiment 3 </a> </h1>
 </td><td> Passed </td></tr><tr><td>3231
 </td><td>YES
 </td><td>YES
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission556366744.html b/src/lab/exp3/submission556366744.html
index 373dc311..4a461f21 100644
--- a/src/lab/exp3/submission556366744.html
+++ b/src/lab/exp3/submission556366744.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-	#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+	#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -243,7 +245,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -251,50 +253,49 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:11:11: note: each undeclared identifier is reported only once for each function it appears in<br/>c:16:20: error: expected ')' before ';' token<br/>;
 <br/> ^<br/>c:21:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -313,7 +314,7 @@ <h4> HINTS </h4><br>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -324,13 +325,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -343,10 +344,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission577197253.html b/src/lab/exp3/submission577197253.html
index 0b4f2919..f94ac9e2 100644
--- a/src/lab/exp3/submission577197253.html
+++ b/src/lab/exp3/submission577197253.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -229,11 +231,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -244,42 +246,41 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -289,7 +290,7 @@ <h4> HINTS </h4><br>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -308,13 +309,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -327,10 +328,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission586661222.html b/src/lab/exp3/submission586661222.html
index acc03773..08cf50cf 100644
--- a/src/lab/exp3/submission586661222.html
+++ b/src/lab/exp3/submission586661222.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -230,11 +232,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -245,36 +247,36 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -295,23 +297,22 @@ <h1> Experiment 3 </a> </h1>
 </td><td> Passed </td></tr><tr><td>3231
 </td><td>YES
 </td><td>YES
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission600928592.html b/src/lab/exp3/submission600928592.html
index b84705fc..ac6c5f85 100644
--- a/src/lab/exp3/submission600928592.html
+++ b/src/lab/exp3/submission600928592.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -230,11 +232,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -246,36 +248,36 @@ <h1> Experiment 3 </a> </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -284,23 +286,22 @@ <h1> Experiment 3 </a> </h1>
 		</tr><tr><td>1
 </td><td>NO
 </td><td>YES
-</td><td> Failed </td><td> Run Time Error </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -313,10 +314,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission607839095.html b/src/lab/exp3/submission607839095.html
index 300abe2a..b93258da 100644
--- a/src/lab/exp3/submission607839095.html
+++ b/src/lab/exp3/submission607839095.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -243,7 +245,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -251,50 +253,49 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:11:11: note: each undeclared identifier is reported only once for each function it appears in<br/>c:16:20: error: expected ')' before ';' token<br/>;
 <br/> ^<br/>c:21:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -313,7 +314,7 @@ <h4> HINTS </h4><br>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -324,13 +325,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -343,10 +344,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission705623947.html b/src/lab/exp3/submission705623947.html
index 9c7aee05..708c909e 100644
--- a/src/lab/exp3/submission705623947.html
+++ b/src/lab/exp3/submission705623947.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -243,7 +245,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -251,47 +253,46 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -310,7 +311,7 @@ <h4> HINTS </h4><br>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -321,13 +322,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -340,10 +341,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission737740138.html b/src/lab/exp3/submission737740138.html
index 63a7c16f..523e7e0d 100644
--- a/src/lab/exp3/submission737740138.html
+++ b/src/lab/exp3/submission737740138.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -246,7 +248,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -254,36 +256,36 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -313,23 +315,22 @@ <h1> Experiment 3 </a> </h1>
 </td><td> Passed </td></tr><tr><td>9
 </td><td>10112359550561797752808988764044943820224719
 </td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -342,10 +343,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission743135170.html b/src/lab/exp3/submission743135170.html
index 32193e5e..5f22a9b7 100644
--- a/src/lab/exp3/submission743135170.html
+++ b/src/lab/exp3/submission743135170.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -245,7 +247,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -253,52 +255,51 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -311,10 +312,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission807423932.html b/src/lab/exp3/submission807423932.html
index 132b0680..e397e6b4 100644
--- a/src/lab/exp3/submission807423932.html
+++ b/src/lab/exp3/submission807423932.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-	#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+	#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -229,11 +231,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -244,42 +246,41 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -289,7 +290,7 @@ <h4> HINTS </h4><br>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -308,13 +309,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -327,10 +328,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission812920506.html b/src/lab/exp3/submission812920506.html
index 2182b7b2..46611117 100644
--- a/src/lab/exp3/submission812920506.html
+++ b/src/lab/exp3/submission812920506.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -244,7 +246,7 @@ <h1> Experiment 3 </a> </h1>
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -252,36 +254,36 @@ <h1> Experiment 3 </a> </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -311,23 +313,22 @@ <h1> Experiment 3 </a> </h1>
 </td><td> Passed </td></tr><tr><td>9
 </td><td>10112359550561797752808988764044943820224719
 </td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -340,10 +341,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission971228782.html b/src/lab/exp3/submission971228782.html
index c42372e4..8a415169 100644
--- a/src/lab/exp3/submission971228782.html
+++ b/src/lab/exp3/submission971228782.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,12 +190,12 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Experiment 3 </a> </h1>
+			<h1> Experiment 3  </h1>
 			</div>
 
 		</div>
@@ -205,7 +208,7 @@ <h1> Experiment 3 </a> </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1> Experiment 3 </a> </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -229,11 +231,11 @@ <h1> Experiment 3 </a> </h1>
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
-	while(n>9)
+	while(n&gt;9)
           n=sum_digits(n);
     
 	
@@ -245,52 +247,51 @@ <h1> Experiment 3 </a> </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
 </select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -303,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/test.html b/src/lab/exp3/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp3/test.html
+++ b/src/lab/exp3/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/theory.html b/src/lab/exp3/theory.html
index a494db51..401c6123 100755
--- a/src/lab/exp3/theory.html
+++ b/src/lab/exp3/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,12 +35,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
+        <p></p><h3>Problem 1</h3>
+<pre>     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
         N=W*1000*X+100+Y*10+Z
         eg: For N=3548
         N=3*1000+5*100+4*10+8
@@ -55,17 +57,16 @@ <h2>Theory</h2>
 	Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.
 	
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
 	and also the value of N. But fortunately we know some properties  about this number with which we can find
 	out what number it is :) . We know the value of X[N]. Let take the sample input. X[N] = 4 in that case. 
 	Say we represent the product as (P[0],P[1],...,P[M]). Now X[N] = 4 and when we multiply it with 
 	<b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 	that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which 
 	we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time.So we carry on like this.
-	<br> <br> 
+	<br/> <br/> 
 	Step1: xxxxxx4
 		    *4 
 		------    
@@ -109,12 +110,13 @@ <h2>Theory</h2>
 	      
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index aabb380a..292ed19f 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
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-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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+	<footer id="footer"><div class="footer-top" id="contact">
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+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 
@@ -221,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 694be9ae..6ee3bdb8 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -109,53 +109,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><a href="http://209.211.220.205/fee
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-			</div>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
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+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</div>
+</footer>
 
 
 
@@ -217,4 +211,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 4bce36f6..4b79399b 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -115,53 +115,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
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+	  </a>
+	</div>
+      </div>
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+</footer>
 
 
 </div> <!-- top div -->
@@ -222,4 +216,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index eb3aaa5a..45ae29b1 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare N and scan N 
+-&gt;declare N and scan N 
 
-->declare a double variable and initialize
+-&gt;declare a double variable and initialize
   it to 0
 	 
-->Calculate the number of digits using the 
+-&gt;Calculate the number of digits using the 
   formula mentioned in theory section
 	
-->print the final result; 
+-&gt;print the final result; 
 	 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index cd20ed8d..a657f11a 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
 main(){
--> declare N and scan N 
+-&gt; declare N and scan N 
 
--> declare a variable which can store
+-&gt; declare a variable which can store
    the number of digits and intialise to 0
 	
-->double result; = 0;
+-&gt;double result; = 0;
   for i = 1 to N
 	result+=log10(i);
 
-->print the final result;
+-&gt;print the final result;
 	 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index c52c4887..df90d065 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -1,19 +1,23 @@
-<pre>
-#include &lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
 main(){
 
-->declare N and scan N 
+-&gt;declare N and scan N 
 
-->double result = 0
+-&gt;double result = 0
 
-->for i = 1 to N
+-&gt;for i = 1 to N
       result+=log10(i);
 
 //Use step(x)=(int)x
 
-->print the final result;
+-&gt;print the final result;
 
-->printf("%d\n"(int)result+1);
+-&gt;printf("%d\n"(int)result+1);
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 7ca4a0de..767d7506 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -1,10 +1,13 @@
-<pre>
-#include &lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
 for(i=1;i&lt;=N;i++)
 	result+=log10(i);
@@ -13,3 +16,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
+++ b/src/lab/exp4/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index 37d56d23..212ceff5 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -1,19 +1,23 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->int N
+	-&gt;int N
 
-	->scan N
+	-&gt;scan N
 
-	->power_five = 0
+	-&gt;power_five = 0
 
-	-> Calculate the power of
+	-&gt; Calculate the power of
 	   five	in N! 
 
-	-> print the power of five
+	-&gt; print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index 8cfbdda8..3d761f68 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->int N
+	-&gt;int N
 
-	->scan N
+	-&gt;scan N
 
-	->power_five = 0
+	-&gt;power_five = 0
 
-	-> while(N){
+	-&gt; while(N){
 		power_five+=N/5;
 		N/=5;
 	 }
-	-> print the power of five
+	-&gt; print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index 80c86531..a2c3724f 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -16,3 +19,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index 80c86531..a2c3724f 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -16,3 +19,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index bd43f737..b2cf3fce 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -169,53 +169,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -277,4 +271,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index c08229cf..9e4e3d3c 100644
--- a/src/lab/exp4/Manual.html
+++ b/src/lab/exp4/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -221,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index d71c102f..9644003b 100644
--- a/src/lab/exp4/Objective.html
+++ b/src/lab/exp4/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -221,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index e502f011..c9d4b39e 100644
--- a/src/lab/exp4/Procedure.html
+++ b/src/lab/exp4/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -229,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quizzes.html
index e848cc52..0d3be48a 100644
--- a/src/lab/exp4/Quizzes.html
+++ b/src/lab/exp4/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
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+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -434,4 +428,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 1cdc110b..21dbaa2d 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -182,53 +182,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -290,4 +284,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1.html b/src/lab/exp4/content1.html
index c4873978..28689891 100755
--- a/src/lab/exp4/content1.html
+++ b/src/lab/exp4/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> Factorials </h1>
 
 <p>Please insert your code here</p> -->
 
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1_1.html b/src/lab/exp4/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp4/content1_1.html
+++ b/src/lab/exp4/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1_2.html b/src/lab/exp4/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp4/content1_2.html
+++ b/src/lab/exp4/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1_3.html b/src/lab/exp4/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp4/content1_3.html
+++ b/src/lab/exp4/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content2.html b/src/lab/exp4/content2.html
index f7de92aa..0b01d31a 100755
--- a/src/lab/exp4/content2.html
+++ b/src/lab/exp4/content2.html
@@ -1,7 +1,11 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content2_1.html b/src/lab/exp4/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp4/content2_1.html
+++ b/src/lab/exp4/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content3.html b/src/lab/exp4/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp4/content3.html
+++ b/src/lab/exp4/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content3_1.html b/src/lab/exp4/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp4/content3_1.html
+++ b/src/lab/exp4/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content4.html b/src/lab/exp4/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp4/content4.html
+++ b/src/lab/exp4/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5.html b/src/lab/exp4/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp4/content5.html
+++ b/src/lab/exp4/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5_1.html b/src/lab/exp4/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp4/content5_1.html
+++ b/src/lab/exp4/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5_2.html b/src/lab/exp4/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp4/content5_2.html
+++ b/src/lab/exp4/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5_3.html b/src/lab/exp4/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp4/content5_3.html
+++ b/src/lab/exp4/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/default.html b/src/lab/exp4/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp4/default.html
+++ b/src/lab/exp4/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/edit_area/plugins/charmap/popup.html b/src/lab/exp4/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp4/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp4/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
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diff --git a/src/lab/exp4/furtherReadings.html b/src/lab/exp4/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp4/furtherReadings.html
+++ b/src/lab/exp4/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/lab.html b/src/lab/exp4/lab.html
index 63458a6f..82d050fb 100755
--- a/src/lab/exp4/lab.html
+++ b/src/lab/exp4/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
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-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Factorials </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Factorials </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/lab_test.html b/src/lab/exp4/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp4/lab_test.html
+++ b/src/lab/exp4/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/objective.html b/src/lab/exp4/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp4/objective.html
+++ b/src/lab/exp4/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/prob_desc.html b/src/lab/exp4/prob_desc.html
index 4ea13cb1..260d87a2 100755
--- a/src/lab/exp4/prob_desc.html
+++ b/src/lab/exp4/prob_desc.html
@@ -1,45 +1,49 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-		<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-
-		</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+		<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+
+		</li></ol></div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/quiz.html b/src/lab/exp4/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp4/quiz.html
+++ b/src/lab/exp4/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission010965066.html b/src/lab/exp4/submission010965066.html
index e634cc47..53505641 100644
--- a/src/lab/exp4/submission010965066.html
+++ b/src/lab/exp4/submission010965066.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
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 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include <stdio.h>
-#include <math.h>
+		#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
-for(i=1;i<=N;i++)
+for(i=1;i&lt;=N;i++)
 	result+=log10(i);
 
 printf("%d\n",(int)result+1);
@@ -235,63 +237,62 @@ <h1> Experiment 4 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br></div> <!--contentLeft -->
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
-<br
- </span></span>
+<br <="" span=""/></span>
    
    
-</div> <!--contentRight -->
+</span></div> <!--contentRight -->
 
 				</div>
 			</article>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission099031407.html b/src/lab/exp4/submission099031407.html
index a2aa04aa..441e47c3 100644
--- a/src/lab/exp4/submission099031407.html
+++ b/src/lab/exp4/submission099031407.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,18 +220,17 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include <stdio.h>
-#include <math.h>
+		#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
-for(i=1;i<=N;i++)
+for(i=1;i&lt;=N;i++)
 	result+=log10(i);
 
 printf("%d\n",(int)result+1);
@@ -236,33 +238,32 @@ <h1> Experiment 4 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -286,37 +287,37 @@ <h1> Experiment 4 </h1>
 </td><td> Passed </td></tr><tr><td>1000000
 </td><td>5565709
 </td><td>5565709
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
-<br
- </span></span>
+<br <="" span=""/></span>
    
    
-</div> <!--contentRight -->
+</span></div> <!--contentRight -->
 
 				</div>
 			</article>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission537352138.html b/src/lab/exp4/submission537352138.html
index 0842fdba..8daebd0a 100644
--- a/src/lab/exp4/submission537352138.html
+++ b/src/lab/exp4/submission537352138.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,14 +220,13 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -239,43 +241,41 @@ <h1> Experiment 4 </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br></div> <!--contentLeft -->
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -291,13 +291,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -310,10 +310,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission575172690.html b/src/lab/exp4/submission575172690.html
index e8dce95e..e0267f29 100644
--- a/src/lab/exp4/submission575172690.html
+++ b/src/lab/exp4/submission575172690.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include <stdio.h>
-#include <math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
-for(i=1;i<=N;i++)
+for(i=1;i&lt;=N;i++)
 	result+=log10(i);
 
 printf("%d\n",(int)result+1);
@@ -234,44 +236,42 @@ <h1> Experiment 4 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br></div> <!--contentLeft -->
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include &lt;stdio.h&gt;
+<pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
 for(i=1;i&lt;=N;i++)
 	result+=log10(i);
@@ -283,13 +283,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +302,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission598456765.html b/src/lab/exp4/submission598456765.html
index 1f30459f..0e73d31d 100644
--- a/src/lab/exp4/submission598456765.html
+++ b/src/lab/exp4/submission598456765.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include <stdio.h>
-#include <math.h>
+		#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
-for(i=1;i<=N;i++)
+for(i=1;i&lt;=N;i++)
 	result+=log10(i);
 
 printf("%d\n",(int)result+1);
@@ -235,33 +237,32 @@ <h1> Experiment 4 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -285,37 +286,37 @@ <h1> Experiment 4 </h1>
 </td><td> Passed </td></tr><tr><td>1000000
 </td><td>5565709
 </td><td>5565709
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
-<br
- </span></span>
+<br <="" span=""/></span>
    
    
-</div> <!--contentRight -->
+</span></div> <!--contentRight -->
 
 				</div>
 			</article>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission822434122.html b/src/lab/exp4/submission822434122.html
index 7bcd54be..baaf88e2 100644
--- a/src/lab/exp4/submission822434122.html
+++ b/src/lab/exp4/submission822434122.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include <stdio.h>
-#include <math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include &lt;stdio.h&gt;
+#include &lt;math.h&gt;
 main(){
 int N,i;
 double result; = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
-for(i=1;i<=N;i++)
+for(i=1;i&lt;=N;i++)
 	result+=log10(i);
 
 printf("%d\n",(int)result+1);
@@ -234,45 +236,43 @@ <h1> Experiment 4 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br>c: In function 'main':<br/>c:5:16: error: expected expression before '=' token<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/>c: In function 'main':<br/>c:5:16: error: expected expression before '=' token<br/>;
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include &lt;stdio.h&gt;
+<pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
 double result; = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
 for(i=1;i&lt;=N;i++)
 	result+=log10(i);
@@ -284,13 +284,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +303,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission902808767.html b/src/lab/exp4/submission902808767.html
index 99437a51..0aa537cc 100644
--- a/src/lab/exp4/submission902808767.html
+++ b/src/lab/exp4/submission902808767.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 4 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Experiment 4 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -240,33 +242,32 @@ <h1> Experiment 4 </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden"  name="highHint" id="highHint_id" value=
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -284,39 +285,38 @@ <h1> Experiment 4 </h1>
 </td><td> Passed </td></tr><tr><td>43674343
 </td><td>10918579
 </td><td>10918579
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
-<br
- </span></span>
+<br <="" span=""/></span>
    
    
-</div> <!--contentRight -->
+</span></div> <!--contentRight -->
 
 				</div>
 			</article>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/test.html b/src/lab/exp4/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp4/test.html
+++ b/src/lab/exp4/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/theory.html b/src/lab/exp4/theory.html
index 4640f79e..0a5d0f78 100755
--- a/src/lab/exp4/theory.html
+++ b/src/lab/exp4/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,12 +35,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
+        <p></p><h3>Problem 1</h3>
+<pre>	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
         1! = 1
        	2! = 1*2 = 2
 	3! = 1*2*3 = 6
@@ -69,26 +71,25 @@ <h2>Theory</h2>
 	of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10^2 which is a 2 
 	digit number . Consider N=125 , which can be written as 0.125 *10^3 which is a 3 digit number. Evidently calcula-
 	-ting the exponent of 10 in the scientific notaion and gives the number of digits.For any N ,N=x*10^exp 
-        => log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
-	N = x*10^exp , x<1 
+        =&gt; log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
+	N = x*10^exp , x&lt;1 
 	Taking step on both sides . 
-	=> step(log10(N)) = step(log10(x)+exp) 
-	=> step(log10(N)) = exp-1 
-	=> exp = step(log10(N))+1
-	=> No_digits(N) = step(log10(N))+1
+	=&gt; step(log10(N)) = step(log10(x)+exp) 
+	=&gt; step(log10(N)) = exp-1 
+	=&gt; exp = step(log10(N))+1
+	=&gt; No_digits(N) = step(log10(N))+1
 	
 	Applying the above formula to calculate the number of digits of N! gives
 	No_digits(N!) = step(log10(N!) ) +1
-	=> No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
-	=> No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
+	=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
+	=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
 
 	log10(N) can be easily calculated by the log10 function in math.h. 
 		
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Let us observe the zeroes in the factorial of a few numbers.
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Let us observe the zeroes in the factorial of a few numbers.
 	
 	4!=24		(0 zeroes)
 	5!=120		(1 zeroes)
@@ -106,24 +107,25 @@ <h2>Theory</h2>
 	Let us formalize the proof.
 	Let p be a prime number.
 
-	n!=1×2×…×(n−1)×n
-	We see that any integer m such that 0 < m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
+	n!=1×2×…×(n−1)×n
+	We see that any integer m such that 0 &lt; m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
 	times.
-	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
+	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
 	And that is all the occurrences of p as a factor of n!.
 	Thus:
-	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
+	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
 	
-Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
+Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
 
 </pre>					
 
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\ No newline at end of file
diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index afe6234e..e2ae60df 100644
--- a/src/lab/exp5/Experiment.html
+++ b/src/lab/exp5/Experiment.html
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@@ -221,4 +215,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
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diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index b46e08f7..a68eaed6 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -109,53 +109,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><a href="http://209.211.220.
 			
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diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index 176dda73..0e49479c 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -119,52 +119,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 			
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 </div> <!-- top div -->
 
@@ -224,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index b4585a55..410c375b 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
@@ -8,13 +11,14 @@
 
 main(){
 
-->declare and scan the string
-->do take care to scan the entire line
+-&gt;declare and scan the string
+-&gt;do take care to scan the entire line
 
-->Now implement the logic of whether a 
+-&gt;Now implement the logic of whether a 
   string is palindrome or not with some
   modifications
 
--> report the result;
+-&gt; report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index af5ca7c4..9a59321f 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -13,14 +16,15 @@
 int flag=1;
 
 while(i &lt; j){
-	->Trverse from i<sup>th</sup> char to right
+	-&gt;Trverse from i<sup>th</sup> char to right
 	  until you hit a  character which is 
 	  a alphabet
-	->Trverse from j<sup>th</sup> char to left
+	-&gt;Trverse from j<sup>th</sup> char to left
 	  until you hit a  character which is a 
 	  alphabet
-	->Do  matching appropriately
+	-&gt;Do  matching appropriately
 }
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index 8892935d..076998f5 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -11,8 +14,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j && !isAlphabet(s[i]))i++;	
-	while(i &lt; j && !isAlphabet(s[j]))j--;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
 
 	if(i&gt;=j)
 		break;
@@ -26,3 +29,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index aa5a9cc3..d7c48cca 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x&gt;='a' && x&lt;='z')||(x&gt;='A' && x&lt;='Z');
+	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
 main(){
 char s[1001];
@@ -12,8 +15,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j && !isAlphabet(s[i]))i++;	
-	while(i &lt; j && !isAlphabet(s[j]))j--;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
 	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index 688155ed..15e48a6b 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -1,10 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan them 
-  ->check if 2<sup>nd</sup> string
+  -&gt;declare two strings
+  -&gt;scan them 
+  -&gt;check if 2<sup>nd</sup> string
     is a subsequence of 1<sup>st</sup> string
-  ->output the result;
+  -&gt;output the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index 4d615431..fcd4a27e 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan the strings 
+  -&gt;declare two strings
+  -&gt;scan the strings 
 
-  ->As stated in the theory try to 
+  -&gt;As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n && str1[i]==str2[p]){
+	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -> output the result;
+  -&gt; output the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index ba9e60bd..74253e9f 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan the strings 
+  -&gt;declare two strings
+  -&gt;scan the strings 
 
-  ->As stated in the theory try to 
+  -&gt;As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n && str1[i]==str2[p]){
+	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -> if p==n then yes 
+  -&gt; if p==n then yes 
      else no
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 7743c840..84e4d612 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -17,3 +20,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index cfbcb8ad..0aa2fd2e 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -171,53 +171,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 </div> <!-- top div -->
@@ -278,4 +272,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index 0ecbb603..50067a03 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
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+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+	  </a>
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+</footer>
 
 
 
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index 31bbd53d..9546fdfc 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
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+	  </a>
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+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index e81e6128..09b84352 100644
--- a/src/lab/exp5/Procedure.html
+++ b/src/lab/exp5/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -228,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index ac6d29ec..12455891 100644
--- a/src/lab/exp5/Quizzes.html
+++ b/src/lab/exp5/Quizzes.html
@@ -266,53 +266,47 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
@@ -374,4 +368,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index 01f60df5..e559a3cd 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -159,53 +159,47 @@ <h4> Proofs </h4>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="./faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -266,4 +260,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1.html b/src/lab/exp5/content1.html
index 5ed89bc6..cdc6a272 100755
--- a/src/lab/exp5/content1.html
+++ b/src/lab/exp5/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> String Operations </h1>
 
 <p>Please insert your code here</p>
  -->
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1_1.html b/src/lab/exp5/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp5/content1_1.html
+++ b/src/lab/exp5/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1_2.html b/src/lab/exp5/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp5/content1_2.html
+++ b/src/lab/exp5/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1_3.html b/src/lab/exp5/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp5/content1_3.html
+++ b/src/lab/exp5/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content2.html b/src/lab/exp5/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp5/content2.html
+++ b/src/lab/exp5/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content2_1.html b/src/lab/exp5/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp5/content2_1.html
+++ b/src/lab/exp5/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content3.html b/src/lab/exp5/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp5/content3.html
+++ b/src/lab/exp5/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content3_1.html b/src/lab/exp5/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp5/content3_1.html
+++ b/src/lab/exp5/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content4.html b/src/lab/exp5/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp5/content4.html
+++ b/src/lab/exp5/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5.html b/src/lab/exp5/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp5/content5.html
+++ b/src/lab/exp5/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5_1.html b/src/lab/exp5/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp5/content5_1.html
+++ b/src/lab/exp5/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5_2.html b/src/lab/exp5/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp5/content5_2.html
+++ b/src/lab/exp5/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5_3.html b/src/lab/exp5/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp5/content5_3.html
+++ b/src/lab/exp5/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/default.html b/src/lab/exp5/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp5/default.html
+++ b/src/lab/exp5/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/edit_area/plugins/charmap/popup.html b/src/lab/exp5/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp5/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp5/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/furtherReadings.html b/src/lab/exp5/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp5/furtherReadings.html
+++ b/src/lab/exp5/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/lab.html b/src/lab/exp5/lab.html
index bcba3dc9..84b4b6e1 100755
--- a/src/lab/exp5/lab.html
+++ b/src/lab/exp5/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  String Operations </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  String Operations </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/lab_test.html b/src/lab/exp5/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp5/lab_test.html
+++ b/src/lab/exp5/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/objective.html b/src/lab/exp5/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp5/objective.html
+++ b/src/lab/exp5/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/prob_desc.html b/src/lab/exp5/prob_desc.html
index d905329e..102a908a 100755
--- a/src/lab/exp5/prob_desc.html
+++ b/src/lab/exp5/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-				<ol>
-		<li> <h2>Problem 1:</h2>
-						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
-						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
-						recognizing a palindromes like: (a) “Madam, I’m Adam.” (b) “Eve.” etc. Write a program that
-						detects palindromes. Your program should accept a string from the key board and output YES/NO.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: Madam, I'm Adam<br />
-						Output:YES<br />
-						Input: Eve.<br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
-							deletion of none, one or more characters.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain two strings separated by a space and size of each string is at max 10^7<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: hyderabad her<br />
-						Output: YES<br />
-						Input: hyderabad dear<br />
-						Output: NO<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-					</li>					
-				</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+				<ol>
+		<li> <h2>Problem 1:</h2>
+						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
+						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
+						recognizing a palindromes like: (a) “Madam, I’m Adam.� (b) “Eve.� etc. Write a program that
+						detects palindromes. Your program should accept a string from the key board and output YES/NO.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: Madam, I'm Adam<br/>
+						Output:YES<br/>
+						Input: Eve.<br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
+							deletion of none, one or more characters.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain two strings separated by a space and size of each string is at max 10^7<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: hyderabad her<br/>
+						Output: YES<br/>
+						Input: hyderabad dear<br/>
+						Output: NO<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+					</li>					
+				</ol></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/quiz.html b/src/lab/exp5/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp5/quiz.html
+++ b/src/lab/exp5/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission096751967.html b/src/lab/exp5/submission096751967.html
index 2c13ad41..063834bd 100644
--- a/src/lab/exp5/submission096751967.html
+++ b/src/lab/exp5/submission096751967.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 5 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Experiment 5 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<string.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+#include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x>='a' && x<='z')||(x>='A' && x<='Z');
+	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
 main(){
 char s[1001];
 scanf("%[^\n]s",s);
 int i=0,j=strlen(s)-1;
 int flag=1;
-while(i < j){
+while(i &lt; j){
 	
-	while(i < j && !isAlphabet(s[i]))i++;	
-	while(i < j && !isAlphabet(s[j]))j--;	
-	if(i>=j)
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
+	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
 		i++,j--;
@@ -251,45 +253,44 @@ <h1> Experiment 5 </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x&gt;='a' && x&lt;='z')||(x&gt;='A' && x&lt;='Z');
+	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
 main(){
 char s[1001];
@@ -298,8 +299,8 @@ <h4> HINTS </h4><br>
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j && !isAlphabet(s[i]))i++;	
-	while(i &lt; j && !isAlphabet(s[j]))j--;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
 	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
@@ -320,13 +321,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -339,10 +340,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission109007246.html b/src/lab/exp5/submission109007246.html
index ff4e3e08..1567b17d 100644
--- a/src/lab/exp5/submission109007246.html
+++ b/src/lab/exp5/submission109007246.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 5 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Experiment 5 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<string.h>
-#include<math.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+#include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x>='a' && x<='z')||(x>='A' && x<='Z');
+	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
 main(){
 char s[1001];
 scanf("%[^\n]s",s);
 int i=0,j=strlen(s)-1;
 int flag=1;
-while(i < j){
+while(i &lt; j){
 	
-	while(i < j && !isAlphabet(s[i]))i++;	
-	while(i < j && !isAlphabet(s[j]))j--;	
-	if(i>=j)
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
+	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
 		i++,j--;
@@ -252,35 +254,35 @@ <h1> Experiment 5 </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -310,23 +312,22 @@ <h1> Experiment 5 </h1>
 </td><td> Passed </td></tr><tr><td>madhava rao nasini
 </td><td>NO
 </td><td>NO
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -339,10 +340,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission237047629.html b/src/lab/exp5/submission237047629.html
index fe675d4f..8f1102e8 100644
--- a/src/lab/exp5/submission237047629.html
+++ b/src/lab/exp5/submission237047629.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 5 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Experiment 5 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-	#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+	#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -236,47 +238,46 @@ <h1> Experiment 5 </h1>
 return 0;
 }	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -291,13 +292,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -310,10 +311,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission533718369.html b/src/lab/exp5/submission533718369.html
index db70c90d..abef36ec 100644
--- a/src/lab/exp5/submission533718369.html
+++ b/src/lab/exp5/submission533718369.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 5 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Experiment 5 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-	#include<stdio.h>
+	#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -237,35 +239,35 @@ <h1> Experiment 5 </h1>
 return 0;
 }	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -283,23 +285,22 @@ <h1> Experiment 5 </h1>
 </td><td> Passed </td></tr><tr><td>mumbai ubai
 </td><td>YES
 </td><td>YES
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -312,10 +313,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/test.html b/src/lab/exp5/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp5/test.html
+++ b/src/lab/exp5/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/theory.html b/src/lab/exp5/theory.html
index 58830de6..85d396b1 100755
--- a/src/lab/exp5/theory.html
+++ b/src/lab/exp5/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,23 +35,21 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
+        <p></p><h3>Problem 1</h3>
+<pre>   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 
 	
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
 	the characters in string2 must appear in the same order as in string1.
 	<h4> Mathematical formulation </h4>
 	Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
-	such that X[i] &lt X[i+1] for 0&lt=i&lt=N-2 and A[X[i]] = B[i] for 0&lt=i&lt=N-1. Why this formulation is correct? 
+	such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct? 
 	B[0] occurs at X[0] 
 	B[1] occurs at X[1]
 	..
@@ -66,26 +67,27 @@ <h4> Solution</h4>
 	of X[0] which can satisfy the above constraint. So which value should X[0] take? 
 	<h5> Proofs </h5> 
 	 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value,
-	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt=2. We will
-	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt X[0]. 
-	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt B[0]. 
+	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt;=2. We will
+	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. 
+	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. 
 	 It can happen that B[1] is not present in [b+1 m] at all which would imply that string B 
 	 cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a
 	 then it is possible that string B might be a subsequence of string A.Thus X[0] must take the 
 	 minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen
-	 as X[0]. <br> <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
+	 as X[0]. <br/> <br/>          Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
 	 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO. 
 	
 	 
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index e0915735..ccbc1d87 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index 515a3ca2..0d9e8f98 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -109,53 +109,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><a href="http://209.211.220.205/feed
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -216,4 +210,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index 3e23fdab..eccb9c72 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -119,53 +119,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -226,4 +220,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 286deef4..03d556c5 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
-	->for each possibility 
+	-&gt;termination conditions
+	-&gt;for each possibility 
 	  of choosing i items of weight
 	  2^index find the number of solutions
 	 
-	->return the total number of solutions
+	-&gt;return the total number of solutions
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index 0c9c3f65..1acb8503 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
+	-&gt;termination conditions
 	
 	for i=0;i*2^index&lt;=W;i++
-		->choosing i items each
+		-&gt;choosing i items each
 		  of weight 2^index
 	 	no_ways(W-i*2^index,index+1)
 
-	->return the total number of solutions
+	-&gt;return the total number of solutions
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index e5f6af0a..17cc4154 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -1,21 +1,25 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
+	-&gt;termination conditions
 	
 	int ans = 0;
 	for i=0;i*2^index&lt;=W;i++
-		->choosing i items each
+		-&gt;choosing i items each
 		  of weight 2^index
 	 	ans+=no_ways(W-i*2^index,index+1)
 
-	->return ans
+	-&gt;return ans
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 2bfd964d..0d2041d6 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index 2bfd964d..0d2041d6 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index e5f72afd..9473b3ea 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
-	->try all possibilities with the given weight
+	-&gt;try all possibilities with the given weight
 	  weight[N-1] 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index 656aa72c..7860e25f 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -1,21 +1,25 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Assume a weight of D on right PAN
+-&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
-	-> Explore the possibilities 
+	-&gt; Explore the possibilities 
 	   keeping weight on right side of PAN 
-		   ->isPossible(N-1,D+weight[N-1],weight)
+		   -&gt;isPossible(N-1,D+weight[N-1],weight)
 	   keeping the weight on left side of PAN
-	    	   ->isPossible(N-1,D-weight[N-1],weight)
+	    	   -&gt;isPossible(N-1,D-weight[N-1],weight)
 	   Not keeping the weight on any PAN
-	           ->isPossible(N-1,D,weight)
+	           -&gt;isPossible(N-1,D,weight)
 }
 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 98b6c3b1..3f4406fe 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
+++ b/src/lab/exp6/Hints2/Hint_3.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Assume a weight of D on right PAN
+-&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight)
 }
 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 2f727855..8d6a9955 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -9,12 +12,12 @@
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -22,3 +25,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 8fc9e4cd..87e86c4f 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
+++ b/src/lab/exp6/Hints2/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -9,15 +12,16 @@
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
 		puts("NO");
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index 7b4d6be5..e7c21bce 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -167,53 +167,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -274,4 +268,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 7e55f4ef..8693014b 100644
--- a/src/lab/exp6/Manual.html
+++ b/src/lab/exp6/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
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+	<footer id="footer"><div class="footer-top" id="contact">
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+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
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+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index 52190f6c..d0c37ebc 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
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-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
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-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-			</div>
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index ed6d12a8..5727b814 100644
--- a/src/lab/exp6/Procedure.html
+++ b/src/lab/exp6/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 </div> <!-- top div -->
@@ -228,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quizzes.html
index 35952f19..ae278a48 100644
--- a/src/lab/exp6/Quizzes.html
+++ b/src/lab/exp6/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -434,4 +428,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 04ef3fd2..7e2949ba 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -150,53 +150,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -257,4 +251,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1.html b/src/lab/exp6/content1.html
index 0d2f2eb1..a66ead40 100755
--- a/src/lab/exp6/content1.html
+++ b/src/lab/exp6/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> Recursion </h1>
 
 <p>Please insert your code here</p>
  -->
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1_1.html b/src/lab/exp6/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp6/content1_1.html
+++ b/src/lab/exp6/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1_2.html b/src/lab/exp6/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp6/content1_2.html
+++ b/src/lab/exp6/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1_3.html b/src/lab/exp6/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp6/content1_3.html
+++ b/src/lab/exp6/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content2.html b/src/lab/exp6/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp6/content2.html
+++ b/src/lab/exp6/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content2_1.html b/src/lab/exp6/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp6/content2_1.html
+++ b/src/lab/exp6/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content3.html b/src/lab/exp6/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp6/content3.html
+++ b/src/lab/exp6/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content3_1.html b/src/lab/exp6/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp6/content3_1.html
+++ b/src/lab/exp6/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content4.html b/src/lab/exp6/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp6/content4.html
+++ b/src/lab/exp6/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5.html b/src/lab/exp6/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp6/content5.html
+++ b/src/lab/exp6/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5_1.html b/src/lab/exp6/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp6/content5_1.html
+++ b/src/lab/exp6/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5_2.html b/src/lab/exp6/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp6/content5_2.html
+++ b/src/lab/exp6/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5_3.html b/src/lab/exp6/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp6/content5_3.html
+++ b/src/lab/exp6/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/default.html b/src/lab/exp6/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp6/default.html
+++ b/src/lab/exp6/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/edit_area/plugins/charmap/popup.html b/src/lab/exp6/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp6/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp6/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/furtherReadings.html b/src/lab/exp6/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp6/furtherReadings.html
+++ b/src/lab/exp6/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/lab.html b/src/lab/exp6/lab.html
index a43bcc73..d071f6d2 100755
--- a/src/lab/exp6/lab.html
+++ b/src/lab/exp6/lab.html
@@ -1,289 +1,292 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Recursion </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Recursion </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/lab_test.html b/src/lab/exp6/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp6/lab_test.html
+++ b/src/lab/exp6/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/objective.html b/src/lab/exp6/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp6/objective.html
+++ b/src/lab/exp6/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/prob_desc.html b/src/lab/exp6/prob_desc.html
index 4baca820..660efce9 100755
--- a/src/lab/exp6/prob_desc.html
+++ b/src/lab/exp6/prob_desc.html
@@ -1,61 +1,65 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-<ol>
-						<li> <h2>Problem 1:</h2>
-					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt 2N .
-					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
-				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
-					them (put them in a state of equilibrium). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
-
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
-				weights on any side<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 4<br />
-						Output: 3 <br />
-						Input: 5 10<br />
-						Output: 14 <br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a weighing pan, n weights and a destination weight D, print “YES” or “NO” depending whether
-you can weight D using other weights given.
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						 Input begins with numbers of weights n, then n values
-denoting mass of each weight and then in the end destination weight D. 
-						<hr>
-						<center><b>Output Specification</b></center><br />
-					As the output, print “YES” if it is possible to weight D, otherwise “NO”
-						<hr>
-						<center><b>Sample Input and Output</b></center><br />
-						Input:  3 1 3 4 2<br />
-						Output: YES<br />
-						Input: 2 1 3 5 <br />
-						Output: NO <br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-		
-			</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+<ol>
+						<li> <h2>Problem 1:</h2>
+					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt; 2N .
+					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
+				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
+					them (put them in a state of equilibrium). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
+
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
+				weights on any side<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 4<br/>
+						Output: 3 <br/>
+						Input: 5 10<br/>
+						Output: 14 <br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a weighing pan, n weights and a destination weight D, print “YES� or “NO� depending whether
+you can weight D using other weights given.
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						 Input begins with numbers of weights n, then n values
+denoting mass of each weight and then in the end destination weight D. 
+						<hr/>
+						<center><b>Output Specification</b></center><br/>
+					As the output, print “YES� if it is possible to weight D, otherwise “NO�
+						<hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input:  3 1 3 4 2<br/>
+						Output: YES<br/>
+						Input: 2 1 3 5 <br/>
+						Output: NO <br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+		
+			</li></ol></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/quiz.html b/src/lab/exp6/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp6/quiz.html
+++ b/src/lab/exp6/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission078498950.html b/src/lab/exp6/submission078498950.html
index b0283312..4b416a1f 100644
--- a/src/lab/exp6/submission078498950.html
+++ b/src/lab/exp6/submission078498950.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 6 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1>  Experiment 6 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -229,56 +231,55 @@ <h1>  Experiment 6 </h1>
 		return 0;
 
 	int ans = 0,i;
-	for(i=0;i*(1<<index)<=W;i++)
-		ans+=no_ways(W-i*(1<<index),index+1);
+	for(i=0;i*(1&lt;&lt;index)&lt;=W;i++)
+		ans+=no_ways(W-i*(1&lt;&lt;index),index+1);
 
 	return ans;
 	
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -296,7 +297,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
@@ -305,13 +306,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -324,10 +325,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission376667958.html b/src/lab/exp6/submission376667958.html
index b002f165..8a5e12f9 100644
--- a/src/lab/exp6/submission376667958.html
+++ b/src/lab/exp6/submission376667958.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 6 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1>  Experiment 6 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -230,50 +232,50 @@ <h1>  Experiment 6 </h1>
 		return 0;
 
 	int ans = 0,i;
-	for(i=0;i*(1<<index)<=W;i++)
-		ans+=no_ways(W-i*(1<<index),index+1);
+	for(i=0;i*(1&lt;&lt;index)&lt;=W;i++)
+		ans+=no_ways(W-i*(1&lt;&lt;index),index+1);
 
 	return ans;
 	
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -294,23 +296,22 @@ <h1>  Experiment 6 </h1>
 </td><td> Passed </td></tr><tr><td>4 10
 </td><td>14
 </td><td>14
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -323,10 +324,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission416502186.html b/src/lab/exp6/submission416502186.html
index 1b6be477..e0a20226 100644
--- a/src/lab/exp6/submission416502186.html
+++ b/src/lab/exp6/submission416502186.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 6 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1>  Experiment 6 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -229,12 +231,12 @@ <h1>  Experiment 6 </h1>
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
-	for(i=0;i<N ;i++){
+	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -243,41 +245,40 @@ <h1>  Experiment 6 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -287,12 +288,12 @@ <h4> HINTS </h4><br>
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -303,13 +304,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -322,10 +323,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission667231208.html b/src/lab/exp6/submission667231208.html
index 46c38815..d5473dcb 100644
--- a/src/lab/exp6/submission667231208.html
+++ b/src/lab/exp6/submission667231208.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 6 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1>  Experiment 6 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -230,12 +232,12 @@ <h1>  Experiment 6 </h1>
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
-	for(i=0;i<N ;i++){
+	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -244,35 +246,35 @@ <h1>  Experiment 6 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -296,23 +298,22 @@ <h1>  Experiment 6 </h1>
 </td><td> Passed </td></tr><tr><td>8 50 50 20 28 81 67 48 50 16
 </td><td>YES
 </td><td>YES
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission830260742.html b/src/lab/exp6/submission830260742.html
index 70283728..756c6583 100644
--- a/src/lab/exp6/submission830260742.html
+++ b/src/lab/exp6/submission830260742.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 6 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1>  Experiment 6 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -229,12 +231,12 @@ <h1>  Experiment 6 </h1>
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
-	for(i=0;i<N ;i++){
+	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -243,51 +245,50 @@ <h1>  Experiment 6 </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/test.html b/src/lab/exp6/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp6/test.html
+++ b/src/lab/exp6/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/theory.html b/src/lab/exp6/theory.html
index 0243e6af..b8d0bd33 100755
--- a/src/lab/exp6/theory.html
+++ b/src/lab/exp6/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,18 +35,16 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
+        <p></p><h3>Problem 1</h3>
+<pre>	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
 	some weights on left side and some weights on right side and we may not use some weights at all.
 	Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing 
 	w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of 
@@ -51,7 +52,7 @@ <h2>Theory</h2>
 	current difference between left pan and right pan is x.
 	If x is 0 then yes we donot choose any weight and thus return 1.
 	Otherwise we have three options
-	<br>
+	<br/>
 	<h5>Option1:</h5>
 		Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right
 		pan becomes x - weight[i].
@@ -73,12 +74,13 @@ <h4> Recursive Function </h4>
 		F(i+1,x+w[i]) corresponds to Option2.
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index 081b2fc3..e4535295 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index 0dd60810..cc4277d6 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -62,9 +62,7 @@
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
-			                    </li>
+			                    
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
@@ -109,53 +107,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><a href="http://209.211.22
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index 7976f71c..c5737a6d 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -115,53 +115,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.htmlx" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -222,4 +216,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index 937fd9b6..f2985e49 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-	->scan the two integers
+	-&gt;scan the two integers
 	    in the form of the strings
-	->traverse over the strings 
+	-&gt;traverse over the strings 
 	  and add digit by digit taking care
 	  of the carry and storing in the 
 	  output string.
-	->print the output string
+	-&gt;print the output string
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index 31232ec6..0c86e255 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
-->scan the input strings
-->declare the output string
+-&gt;scan the input strings
+-&gt;declare the output string
 
-->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
-	->value1 = str1[i]-'0' 
-	->value2 = str1[j]-'0'
-	->store the result; output[k]
-	->update carry
+-&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+	-&gt;value1 = str1[i]-'0' 
+	-&gt;value2 = str1[j]-'0'
+	-&gt;store the result; output[k]
+	-&gt;update carry
 	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index e9091dd8..1c983d9c 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
-->scan the input strings
-->declare the output string
+-&gt;scan the input strings
+-&gt;declare the output string
 
-->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+-&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
 	
-	->value1 = (i&gt;=0)?str1[i]-'0':0
-	->value2 = (j&gt;=0)?str2[j]-'0':0
-	->output[k++] = (value1+value2+carry)%10;
-	->carry = (value1+value2+carry)/10;
+	-&gt;value1 = (i&gt;=0)?str1[i]-'0':0
+	-&gt;value2 = (j&gt;=0)?str2[j]-'0':0
+	-&gt;output[k++] = (value1+value2+carry)%10;
+	-&gt;carry = (value1+value2+carry)/10;
 	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index 5d478615..808bacf7 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -1,33 +1,37 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+main(){
+	char s1[51],s2[51];
+	scanf("%s %s",s1,s2);
+	char sum[52];
+	
+	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
+	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
+                           
+		value = carry;
+		if(i&gt;=0){
+			value+=(s1[i]-'0');
+			i--;
+		}
+		if(j&gt;=0){
+			value+=(s2[j]-'0');
+			j--;
+		}
+		sum[index++]=(char)(value%10 + '0');
+		carry = value/10;
+	}
+	//take care of the cases like 99+1
+	if(carry)
+		sum[index++]='1';
+		
+	for(i=index-1;i&gt;=0;i--)
+		printf("%c",sum[i]);
+	puts("");
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index 3cc1c9c3..257c50f4 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -1,11 +1,15 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->The square root must 
+	-&gt;scan the input
+	-&gt;The square root must 
 	  be in the range [1 N]
-	->so do binary search 
+	-&gt;so do binary search 
 	  in the range [1 N]
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index c3df075a..8457f863 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->The square root must 
+	-&gt;scan the input
+	-&gt;The square root must 
 	  be in the range [1 N]
-	->so do binary search 
+	-&gt;so do binary search 
 	 in [1 N] taking the
 	 decision based on the comparison 
 	 between mid*mid and N
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index 86806181..0cb4c159 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
 	double mid = (start+end)/2;
 
-	->termination condition
+	-&gt;termination condition
 
 	if(mid*mid &gt; N)
 		return search(start,mid-1);
@@ -18,3 +21,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index 266d0061..d427d49c 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
@@ -19,8 +22,9 @@
 
 }
 main(){
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 7bdec476..9e057f11 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -164,53 +164,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -271,4 +265,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index 691cac49..c5a4bdf3 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 36065a8e..930586b6 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index 2af526fd..2c41c97f 100644
--- a/src/lab/exp7/Procedure.html
+++ b/src/lab/exp7/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -228,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quizzes.html
index 2894ff70..22f69baa 100644
--- a/src/lab/exp7/Quizzes.html
+++ b/src/lab/exp7/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
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+</footer>
 
 
 </div> <!-- top div -->
@@ -434,4 +428,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index f308cc11..ce699ce9 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -130,53 +130,47 @@ <h3>Time complexity</h3>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -237,4 +231,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1.html b/src/lab/exp7/content1.html
index 68b459ac..2efb071f 100755
--- a/src/lab/exp7/content1.html
+++ b/src/lab/exp7/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1>   Advanced Arithmatic  </h1>
 
 <p>Please insert your code here</p>
  -->
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1_1.html b/src/lab/exp7/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp7/content1_1.html
+++ b/src/lab/exp7/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1_2.html b/src/lab/exp7/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp7/content1_2.html
+++ b/src/lab/exp7/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1_3.html b/src/lab/exp7/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp7/content1_3.html
+++ b/src/lab/exp7/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content2.html b/src/lab/exp7/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp7/content2.html
+++ b/src/lab/exp7/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content2_1.html b/src/lab/exp7/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp7/content2_1.html
+++ b/src/lab/exp7/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content3.html b/src/lab/exp7/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp7/content3.html
+++ b/src/lab/exp7/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content3_1.html b/src/lab/exp7/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp7/content3_1.html
+++ b/src/lab/exp7/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content4.html b/src/lab/exp7/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp7/content4.html
+++ b/src/lab/exp7/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5.html b/src/lab/exp7/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp7/content5.html
+++ b/src/lab/exp7/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5_1.html b/src/lab/exp7/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp7/content5_1.html
+++ b/src/lab/exp7/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5_2.html b/src/lab/exp7/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp7/content5_2.html
+++ b/src/lab/exp7/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5_3.html b/src/lab/exp7/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp7/content5_3.html
+++ b/src/lab/exp7/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/default.html b/src/lab/exp7/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp7/default.html
+++ b/src/lab/exp7/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/edit_area/plugins/charmap/popup.html b/src/lab/exp7/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp7/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp7/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
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-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/furtherReadings.html b/src/lab/exp7/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp7/furtherReadings.html
+++ b/src/lab/exp7/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/lab.html b/src/lab/exp7/lab.html
index 52d01799..b4ed72a6 100755
--- a/src/lab/exp7/lab.html
+++ b/src/lab/exp7/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Advanced Atrihmatic </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Advanced Atrihmatic </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/lab_test.html b/src/lab/exp7/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp7/lab_test.html
+++ b/src/lab/exp7/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/objective.html b/src/lab/exp7/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp7/objective.html
+++ b/src/lab/exp7/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/prob_desc.html b/src/lab/exp7/prob_desc.html
index 7b85da53..dd7acff8 100755
--- a/src/lab/exp7/prob_desc.html
+++ b/src/lab/exp7/prob_desc.html
@@ -1,47 +1,51 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-				<div id="content">
-				<ol>
-	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-				There will be two positive integers (&lt 10^50) separated by a space.
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must contain a single number representing the sum of the two integers
-						<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 323289329329392893 3283928392839283928932329<br />
-						Output:3283928716128613258325222<br />
-						Input: 10 99<br />
-						Output: 109<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-					Find the square root of a positive integer using binary search
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
-					the judges solution will be accepted as correct <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2.2361<br />
-						Input: 25<br />
-						Output: 5.0000<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+				<div id="content">
+				<ol>
+	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+				There will be two positive integers (&lt; 10^50) separated by a space.
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must contain a single number representing the sum of the two integers
+						<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 323289329329392893 3283928392839283928932329<br/>
+						Output:3283928716128613258325222<br/>
+						Input: 10 99<br/>
+						Output: 109<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+					Find the square root of a positive integer using binary search
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
+					the judges solution will be accepted as correct <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2.2361<br/>
+						Input: 25<br/>
+						Output: 5.0000<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/quiz.html b/src/lab/exp7/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp7/quiz.html
+++ b/src/lab/exp7/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission190225116.html b/src/lab/exp7/submission190225116.html
index e5d93ae3..445fc1a0 100644
--- a/src/lab/exp7/submission190225116.html
+++ b/src/lab/exp7/submission190225116.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 7 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1>  Experiment 7 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<string.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 main(){
 	char s1[51],s2[51];
 	scanf("%s %s",s1,s2);
 	char sum[52];
 	
 	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i>=0 || j>=0;){
+	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
                            
 		value = carry;
-		if(i>=0){
+		if(i&gt;=0){
 			value+=(s1[i]-'0');
 			i--;
 		}
-		if(j>=0){
+		if(j&gt;=0){
 			value+=(s2[j]-'0');
 			j--;
 		}
@@ -245,47 +247,46 @@ <h1>  Experiment 7 </h1>
 	if(carry)
 		sum[index++]='1';
 		
-	for(i=index-1;i>=0;i--)
+	for(i=index-1;i&gt;=0;i--)
 		printf("%c",sum[i]);
 	puts("");
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 main(){
 	char s1[51],s2[51];
@@ -320,13 +321,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -339,10 +340,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission227837884.html b/src/lab/exp7/submission227837884.html
index c9efa409..d6f9f86c 100644
--- a/src/lab/exp7/submission227837884.html
+++ b/src/lab/exp7/submission227837884.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 7 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,20 +220,19 @@ <h1>  Experiment 7 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<math.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
 
 	
 	double mid = (start+end)/2;
 
-	if(fabs(mid*mid-N)<=1e-4)
+	if(fabs(mid*mid-N)&lt;=1e-4)
 		return mid;
 
-	if(mid*mid > N){
+	if(mid*mid &gt; N){
 		return mysqrt(start,mid-1);
 	}
 	else {
@@ -239,46 +241,45 @@ <h1>  Experiment 7 </h1>
 
 }
 main(){
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
@@ -298,7 +299,7 @@ <h4> HINTS </h4><br>
 
 }
 main(){
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }
@@ -306,13 +307,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission419966738.html b/src/lab/exp7/submission419966738.html
index b0688b3e..d4a281d1 100644
--- a/src/lab/exp7/submission419966738.html
+++ b/src/lab/exp7/submission419966738.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 7 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,21 +220,20 @@ <h1>  Experiment 7 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<math.h>
+		#include&lt;stdio.h&gt;
+#include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
 
 	
 	double mid = (start+end)/2;
 
-	if(fabs(mid*mid-N)<=1e-4)
+	if(fabs(mid*mid-N)&lt;=1e-4)
 		return mid;
 
-	if(mid*mid > N){
+	if(mid*mid &gt; N){
 		return mysqrt(start,mid-1);
 	}
 	else {
@@ -240,40 +242,40 @@ <h1>  Experiment 7 </h1>
 
 }
 main(){
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -291,23 +293,22 @@ <h1>  Experiment 7 </h1>
 </td><td> Passed </td></tr><tr><td>498439
 </td><td>706.0021
 </td><td>706.0021
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -320,10 +321,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission491787357.html b/src/lab/exp7/submission491787357.html
index dc658343..81efb578 100644
--- a/src/lab/exp7/submission491787357.html
+++ b/src/lab/exp7/submission491787357.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 7 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1>  Experiment 7 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<string.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 main(){
 	char s1[51],s2[51];
 	scanf("%s %s",s1,s2);
 	char sum[52];
 	
 	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i>=0 || j>=0;){
+	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
                            
 		value = carry;
-		if(i>=0){
+		if(i&gt;=0){
 			value+=(s1[i]-'0');
 			i--;
 		}
-		if(j>=0){
+		if(j&gt;=0){
 			value+=(s2[j]-'0');
 			j--;
 		}
@@ -246,41 +248,41 @@ <h1>  Experiment 7 </h1>
 	if(carry)
 		sum[index++]='1';
 		
-	for(i=index-1;i>=0;i--)
+	for(i=index-1;i&gt;=0;i--)
 		printf("%c",sum[i]);
 	puts("");
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1>  Experiment 7 </h1>
 </td><td> Passed </td></tr><tr><td>3283928392839283928932329 323289329329392893
 </td><td>3283928716128613258325222
 </td><td>3283928716128613258325222
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/test.html b/src/lab/exp7/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp7/test.html
+++ b/src/lab/exp7/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/theory.html b/src/lab/exp7/theory.html
index 5a30da65..e255f699 100755
--- a/src/lab/exp7/theory.html
+++ b/src/lab/exp7/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,21 +35,19 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
+        <p></p><h3>Problem 1</h3>
+<pre>If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
         Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
-	integer&gt1 lies in between [1 N]. Suppose P is a number such that P*P&gt N then the result must be in the interval 
-	[1 P-1] oterwise if P*P&lt N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
+	integer&gt;1 lies in between [1 N]. Suppose P is a number such that P*P&gt; N then the result must be in the interval 
+	[1 P-1] oterwise if P*P&lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
 	integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending 
 	upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval
 	or conclude that mid is the square root of N.While coding do take care of the fact of precision since 
@@ -60,12 +61,13 @@ <h4>Time complexity</h4>
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index dfd30b77..a8363f90 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index 7882d092..5777b329 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -109,53 +109,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><a href="http://209.211.
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+	</div>
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+</footer>
 
 
 </div> <!-- top div -->
@@ -216,4 +210,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 96d47b31..42c8131d 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -119,52 +119,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 </div> <!-- top div -->
 
@@ -224,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
+++ b/src/lab/exp8/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index 75d12f7b..b575b71a 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for each pair (i,j) find 
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for each pair (i,j) find 
 	  out how many k's exist 
 	  such that arr[i]+arr[j]&lt; arr[k]
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index 0c9dac84..8adbd803 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
 }
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for(i=0;i&lt; N;i++)
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index 0ce98eba..a003d9d2 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
-	->termination condition
+	-&gt;termination condition
 	int mid = (start+end)&gt;&gt;1;
 	if(arr[mid]&gt; num)
 		return (end-mid+1)+search(arr,start,mid-1,num);
@@ -10,13 +13,14 @@
 		return search(arr,mid+1,end,num);
 }
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for(i=0;i&lt; N;i++)
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index f01cfdcd..ad5a0bc5 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -1,31 +1,35 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
+int compare(const void *a,const void *b){
+	return *((int *)a)&gt;*((int *)b);
+}
+int search(int *a,int start,int end,int num){
+	if(start&gt;end)
+		return 0;
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
+		return (end-mid+1)+search(a,start,mid-1,num);
+	else
+		return search(a,mid+1,end,num);
+}
+main(){
+	int N;
+	scanf("%d",&amp;N);
+	int arr[N];
+	int i,j;
+	for(i=0;i&lt; N;i++)
+		scanf("%d",arr+i);
+	qsort(arr,N,sizeof(int),compare);
+	int ans=0;
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
+			ans+=search(arr,0,N-1,arr[i]+arr[j]);
+	printf("%d\n",ans);
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index 56b2261b..83aa84c0 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
-	   ->update the position array
-	   ->find out how much should be the 
+	-&gt;scan the input
+	-&gt;for each index in the string
+	   -&gt;update the position array
+	   -&gt;find out how much should be the 
 	  length so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	->print the minimum length 
+	-&gt;print the minimum length 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index dbdafe15..4d6f6a61 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
+	-&gt;scan the input
+	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
-	        ->find out how much should be the 
+	        -&gt;find out how much should be the 
 	  lengt;h so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	->print the minimum length
+	-&gt;print the minimum length
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index d8422685..4f3da51a 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
+	-&gt;scan the input
+	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
@@ -12,9 +15,10 @@
 			if(minIndex&gt;pos[j])
 				minIndex=pos[j];
 		if(minLength&gt;(index-minIndex+1))
-			->update minLength;
-	->print the minimum length
+			-&gt;update minLength;
+	-&gt;print the minimum length
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 440b1af2..216e8f4d 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -1,50 +1,54 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 && minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+
+main(){
+	int N;
+	char str[1000001];
+	scanf("%s",str);
+	scanf("%d",&amp;N);
+	if(!N)
+	{
+		printf("0\n");
+		return 0;
+	}
+	int i,j;
+	char input_char[N];
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
+	}
+	
+	int pos[N];
+	for(i=0;i&lt; N;i++)
+		pos[i]=-1;
+
+	int minLength = strlen(str)+1;
+
+	for(i=0;str[i];i++){
+		for(j=0;j&lt; N;j++){
+			if(input_char[j]==str[i])
+				pos[j]=i;
+		}
+		int minValue = 1000001;
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
+				minValue = pos[j];
+
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
+			minLength = i-minValue+1;
+		}
+
+	}
+	if(minLength==strlen(str)+1){
+		printf("-1\n");
+	}
+	else{
+		printf("%d\n",minLength);
+	}
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index bb654e59..03ff175e 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -168,53 +168,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -275,4 +269,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index c5ab475f..2598a850 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 21e132a2..04b60c35 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
index f698037b..97eb46cb 100644
--- a/src/lab/exp8/Procedure.html
+++ b/src/lab/exp8/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -228,4 +222,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quizzes.html
index d3e03050..bc5ef916 100644
--- a/src/lab/exp8/Quizzes.html
+++ b/src/lab/exp8/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -434,4 +428,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 1d96e7c0..6166b82f 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -122,53 +122,47 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -229,4 +223,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1.html b/src/lab/exp8/content1.html
index f865013e..cbdf5720 100755
--- a/src/lab/exp8/content1.html
+++ b/src/lab/exp8/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1>  Searching and Sorting  </h1>
 
 <p>Please insert your code here</p>
  -->
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1_1.html b/src/lab/exp8/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp8/content1_1.html
+++ b/src/lab/exp8/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1_2.html b/src/lab/exp8/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp8/content1_2.html
+++ b/src/lab/exp8/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1_3.html b/src/lab/exp8/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp8/content1_3.html
+++ b/src/lab/exp8/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content2.html b/src/lab/exp8/content2.html
index 00c1917f..51cda900 100755
--- a/src/lab/exp8/content2.html
+++ b/src/lab/exp8/content2.html
@@ -1,8 +1,13 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content2_1.html b/src/lab/exp8/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp8/content2_1.html
+++ b/src/lab/exp8/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content3.html b/src/lab/exp8/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp8/content3.html
+++ b/src/lab/exp8/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content3_1.html b/src/lab/exp8/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp8/content3_1.html
+++ b/src/lab/exp8/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content4.html b/src/lab/exp8/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp8/content4.html
+++ b/src/lab/exp8/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5.html b/src/lab/exp8/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp8/content5.html
+++ b/src/lab/exp8/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5_1.html b/src/lab/exp8/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp8/content5_1.html
+++ b/src/lab/exp8/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5_2.html b/src/lab/exp8/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp8/content5_2.html
+++ b/src/lab/exp8/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5_3.html b/src/lab/exp8/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp8/content5_3.html
+++ b/src/lab/exp8/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/default.html b/src/lab/exp8/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp8/default.html
+++ b/src/lab/exp8/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/edit_area/plugins/charmap/popup.html b/src/lab/exp8/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp8/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp8/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/furtherReadings.html b/src/lab/exp8/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp8/furtherReadings.html
+++ b/src/lab/exp8/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/lab.html b/src/lab/exp8/lab.html
index 74073f03..afdf88e4 100755
--- a/src/lab/exp8/lab.html
+++ b/src/lab/exp8/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Searching and Sorting </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Searching and Sorting </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/lab_test.html b/src/lab/exp8/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp8/lab_test.html
+++ b/src/lab/exp8/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/objective.html b/src/lab/exp8/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp8/objective.html
+++ b/src/lab/exp8/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/prob_desc.html b/src/lab/exp8/prob_desc.html
index a0765c00..97e98618 100755
--- a/src/lab/exp8/prob_desc.html
+++ b/src/lab/exp8/prob_desc.html
@@ -1,68 +1,72 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-							<li> <h2>Problem 1:</h2>
-You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
-problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
-are considered to be valid traiangles
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-Input contains N(&lt= 1000), followed by N numbers in the next line.The numbers
-are separated by spaces and each number is &gt 0 and &lt 10^6
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-Print the number of invalid traingles that can be formed.
-						
-		<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5 <br/>
-							1 2 3 4 10<br />
-						Output:<br>
-						
-
-						</br>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a String and a character set we need to find out the length of the 
-smallest substring which contains all the characters of the set.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-The input contains a string(length&lt=10^5) made up of small letters from english language
-followed by number of characters N(&lt 26) and then N chracters in the next line 
-follow separated by spaces.
-	
-<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-The output must contain the length of the smallest substring which contains 
-all the characters from the character set. If no such substring exists report -1.
-
-						<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: applelooksred 3 e a p
-						<br />
-						Output: 5
-						<br>
-						</br>
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				
-		</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+							<li> <h2>Problem 1:</h2>
+You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
+problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
+are considered to be valid traiangles
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
+are separated by spaces and each number is &gt; 0 and &lt; 10^6
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+Print the number of invalid traingles that can be formed.
+						
+		<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5 <br/>
+							1 2 3 4 10<br/>
+						Output:<br/>
+						
+
+						<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a String and a character set we need to find out the length of the 
+smallest substring which contains all the characters of the set.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+The input contains a string(length&lt;=10^5) made up of small letters from english language
+followed by number of characters N(&lt; 26) and then N chracters in the next line 
+follow separated by spaces.
+	
+<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+The output must contain the length of the smallest substring which contains 
+all the characters from the character set. If no such substring exists report -1.
+
+						<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: applelooksred 3 e a p
+						<br/>
+						Output: 5
+						<br/>
+						<br/>
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				
+		</li></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/quiz.html b/src/lab/exp8/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp8/quiz.html
+++ b/src/lab/exp8/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission046206449.html b/src/lab/exp8/submission046206449.html
index 4dc47d3a..f8d747b3 100644
--- a/src/lab/exp8/submission046206449.html
+++ b/src/lab/exp8/submission046206449.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<string.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -234,27 +236,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLengt;h = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLengt;h> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -270,51 +272,50 @@ <h1>  Experiment 8 </h1>
 
 Highest Level </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br>c: In function 'main':<br/>c:24:15: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:24:15: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:24:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:36:30: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:41:13: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:45:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:50:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:50:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/>c: At top level:<br/>c:50:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:50:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -323,7 +324,7 @@ <h4> HINTS </h4><br>
 	int i,j;
 	char input_char[N];
 	for(i=0;i&lt; N;i++){
-		scanf(" %c",&input_char[i]);
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
@@ -342,7 +343,7 @@ <h4> HINTS </h4><br>
 			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLengt;h&gt; (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -359,13 +360,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -378,10 +379,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission173316296.html b/src/lab/exp8/submission173316296.html
index 1ba616ad..64020c32 100644
--- a/src/lab/exp8/submission173316296.html
+++ b/src/lab/exp8/submission173316296.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,33 +220,32 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
@@ -251,40 +253,39 @@ <h1>  Experiment 8 </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
 	return *((int *)a)&gt;*((int *)b);
@@ -300,7 +301,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
 	for(i=0;i&lt; N;i++)
@@ -317,13 +318,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -336,10 +337,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission299697804.html b/src/lab/exp8/submission299697804.html
index 30241a02..54b2d5b6 100644
--- a/src/lab/exp8/submission299697804.html
+++ b/src/lab/exp8/submission299697804.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,34 +220,33 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
@@ -252,34 +254,34 @@ <h1>  Experiment 8 </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -350,23 +352,22 @@ <h1>  Experiment 8 </h1>
 84
 </td><td>34
 </td><td>34
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -379,10 +380,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission334539183.html b/src/lab/exp8/submission334539183.html
index ac1f1a44..8981231c 100644
--- a/src/lab/exp8/submission334539183.html
+++ b/src/lab/exp8/submission334539183.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<string.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -235,27 +237,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLength = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLength> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
 			minLength = i-minValue+1;
 		}
 
@@ -269,34 +271,34 @@ <h1>  Experiment 8 </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -314,23 +316,22 @@ <h1>  Experiment 8 </h1>
 </td><td> Passed </td></tr><tr><td>ahfjd 0
 </td><td>0
 </td><td>0
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -343,10 +344,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission423347682.html b/src/lab/exp8/submission423347682.html
index 351f77da..e1c577a7 100644
--- a/src/lab/exp8/submission423347682.html
+++ b/src/lab/exp8/submission423347682.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<string.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -234,27 +236,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLength = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLength> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -268,49 +270,48 @@ <h1>  Experiment 8 </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br>c: In function 'main':<br/>c:37:4: error: 'minLengt' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:37:4: error: 'minLengt' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:37:4: note: each undeclared identifier is reported only once for each function it appears in<br/>c:37:13: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -319,7 +320,7 @@ <h4> HINTS </h4><br>
 	int i,j;
 	char input_char[N];
 	for(i=0;i&lt; N;i++){
-		scanf(" %c",&input_char[i]);
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
@@ -338,7 +339,7 @@ <h4> HINTS </h4><br>
 			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLength&gt; (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -355,13 +356,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -374,10 +375,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission667158425.html b/src/lab/exp8/submission667158425.html
index 92054da2..92510ecc 100644
--- a/src/lab/exp8/submission667158425.html
+++ b/src/lab/exp8/submission667158425.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<string.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -235,27 +237,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLengt;h = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLengt;h> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -271,54 +273,53 @@ <h1>  Experiment 8 </h1>
 
 Highest Level </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br>c: In function 'main':<br/>c:25:15: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:25:15: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:25:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:37:30: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:42:13: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:46:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:51:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:51:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/>c: At top level:<br/>c:51:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:51:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -331,10 +332,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission668064004.html b/src/lab/exp8/submission668064004.html
index 55e84119..3181fc31 100644
--- a/src/lab/exp8/submission668064004.html
+++ b/src/lab/exp8/submission668064004.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,72 +220,70 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
 	return *((int *)a)&gt;*((int *)b);
@@ -298,7 +299,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
 	for(i=0;i&lt; N;i++)
@@ -315,13 +316,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -334,10 +335,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission691802271.html b/src/lab/exp8/submission691802271.html
index f566f093..403d7940 100644
--- a/src/lab/exp8/submission691802271.html
+++ b/src/lab/exp8/submission691802271.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,84 +220,82 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -307,10 +308,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission821300773.html b/src/lab/exp8/submission821300773.html
index bcadc668..6aa026f3 100644
--- a/src/lab/exp8/submission821300773.html
+++ b/src/lab/exp8/submission821300773.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,18 +220,17 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
-#include<string.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -236,27 +238,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLengt;h = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLengt;h> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -272,54 +274,53 @@ <h1>  Experiment 8 </h1>
 
 Highest Level </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br>c: In function 'main':<br/>c:26:15: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:26:15: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:26:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:38:30: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:43:13: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:47:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:52:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:52:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/>c: At top level:<br/>c:52:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:52:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -332,10 +333,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission880470462.html b/src/lab/exp8/submission880470462.html
index 7fbd2546..5f0be3c7 100644
--- a/src/lab/exp8/submission880470462.html
+++ b/src/lab/exp8/submission880470462.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,19 +220,18 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-		#include<stdio.h>
-#include<string.h>
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -237,27 +239,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLengt;h = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLengt;h> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
 			minLengt;h = i-minValue+1;
 		}
 
@@ -273,54 +275,53 @@ <h1>  Experiment 8 </h1>
 
 Highest Level </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br>c: In function 'main':<br/>c:27:15: error: 'h' undeclared (first use in this function)<br/>;
+<br/><br/>c: In function 'main':<br/>c:27:15: error: 'h' undeclared (first use in this function)<br/>;
 <br/> ^<br/>c:27:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:39:30: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:44:13: error: expected ')' before ';' token<br/>{
 <br/> ^<br/>c:48:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:53:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:53:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></div> <!--contentLeft -->
+<br/> ^<br/>c: At top level:<br/>c:53:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:53:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -333,10 +334,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission943336517.html b/src/lab/exp8/submission943336517.html
index 97772f32..7eee0fa7 100644
--- a/src/lab/exp8/submission943336517.html
+++ b/src/lab/exp8/submission943336517.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,69 +220,68 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -350,23 +352,22 @@ <h1>  Experiment 8 </h1>
 84
 </td><td>34
 </td><td>34
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -379,10 +380,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission943865944.html b/src/lab/exp8/submission943865944.html
index c6b8e490..af0fd5f8 100644
--- a/src/lab/exp8/submission943865944.html
+++ b/src/lab/exp8/submission943865944.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
-#include<string.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -234,27 +236,27 @@ <h1>  Experiment 8 </h1>
 	}
 	int i,j;
 	char input_char[N];
-	for(i=0;i< N;i++){
-		scanf(" %c",&input_char[i]);
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		pos[i]=-1;
 
 	int minLength = strlen(str)+1;
 
 	for(i=0;str[i];i++){
-		for(j=0;j< N;j++){
+		for(j=0;j&lt; N;j++){
 			if(input_char[j]==str[i])
 				pos[j]=i;
 		}
 		int minValue = 1000001;
-		for(j=0;j< N;j++)
-			if(minValue >  pos[j])
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLength> (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
 			minLength = i-minValue+1;
 		}
 
@@ -268,47 +270,46 @@ <h1>  Experiment 8 </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	if(!N)
 	{
 		printf("0\n");
@@ -317,7 +318,7 @@ <h4> HINTS </h4><br>
 	int i,j;
 	char input_char[N];
 	for(i=0;i&lt; N;i++){
-		scanf(" %c",&input_char[i]);
+		scanf(" %c",&amp;input_char[i]);
 	}
 	
 	int pos[N];
@@ -336,7 +337,7 @@ <h4> HINTS </h4><br>
 			if(minValue &gt;  pos[j])
 				minValue = pos[j];
 
-		if(minValue!=-1 && minLength&gt; (i-minValue+1)){
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
 			minLength = i-minValue+1;
 		}
 
@@ -353,13 +354,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -372,10 +373,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission983041517.html b/src/lab/exp8/submission983041517.html
index ff2db2d1..ca1a5a88 100644
--- a/src/lab/exp8/submission983041517.html
+++ b/src/lab/exp8/submission983041517.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1>  Experiment 8 </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,67 +220,66 @@ <h1>  Experiment 8 </h1>
 
 <center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
-#include<stdlib.h>
+		#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
-	return *((int *)a)>*((int *)b);
+	return *((int *)a)&gt;*((int *)b);
 }
 int search(int *a,int start,int end,int num){
-	if(start>end)
+	if(start&gt;end)
 		return 0;
-	int mid = (start+end)>>1 ;
-	if(a[mid]>num)
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
 		return (end-mid+1)+search(a,start,mid-1,num);
 	else
 		return search(a,mid+1,end,num);
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int arr[N];
 	int i,j;
-	for(i=0;i< N;i++)
+	for(i=0;i&lt; N;i++)
 		scanf("%d",arr+i);
 	qsort(arr,N,sizeof(int),compare);
 	int ans=0;
-	for(i=0;i< N;i++)
-		for(j=i+1;j< N;j++)
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 	printf("%d\n",ans);
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -296,23 +298,22 @@ <h1>  Experiment 8 </h1>
 16
 </td><td>69
 </td><td>34
-</td><td> Failed </td><td> Run Time Error </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -325,10 +326,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/test.html b/src/lab/exp8/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp8/test.html
+++ b/src/lab/exp8/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/theory.html b/src/lab/exp8/theory.html
index 98e1d5d8..7bfc1958 100755
--- a/src/lab/exp8/theory.html
+++ b/src/lab/exp8/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,20 +35,19 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	Consider three numbers from the set say a,b,c. If either a+b&lt c or b+c&lt a or c+a&lt b  then (a,b,c) cannot
+        <p></p><h3>Problem 1</h3>
+<pre>	Consider three numbers from the set say a,b,c. If either a+b&lt; c or b+c&lt; a or c+a&lt; b  then (a,b,c) cannot
 	form a triangle.Lets state the problem little differently for each pair (a,b) we want to find out how many 
-	numbers c are there such that a+b &lt c. We consider each pair (a,b) and search for how many numbers are there
+	numbers c are there such that a+b &lt; c. We consider each pair (a,b) and search for how many numbers are there
 	which are greater than a+b. This can be done easily using binary search. Sort the array and 
-	consider the interval (start,end) . If arr[mid]&gt a+b then (mid-end+1) numbers are greater than a+b 
-	otherwise if arr[mid]&lt a+b then we dont add anything to the result and search in (start,mid-1). 
+	consider the interval (start,end) . If arr[mid]&gt; a+b then (mid-end+1) numbers are greater than a+b 
+	otherwise if arr[mid]&lt; a+b then we dont add anything to the result and search in (start,mid-1). 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
+<p></p>
+<p></p><h3>Problem 2</h3>
 	Consider the given string. We need to find the smallest substring which contains all the characters of the given set.
 	Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much
 	we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are 
@@ -53,16 +55,15 @@ <h2>Theory</h2>
 	say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum
 	value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
-<pre>
+<pre></pre>					
 
-</pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index dd9f4407..2fec8e42 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 0609dc25..63768bf8 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -109,53 +109,47 @@ <h1 class="text-h2-lightblue">Permutations</h1><a href="http://209.211.220.205/f
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -216,4 +210,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 377a1220..56fb1d3c 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -119,52 +119,47 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 </div> <!-- top div -->
 
@@ -224,4 +219,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index e69de29b..683f3789 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -0,0 +1,5 @@
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index b76acb02..7cd8deb1 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
-->N means the number of weights left
-->weight is an array containing the weights
-->S we need to achieve this weight
-->Handle termination cases
-->recursive calls
+-&gt;N means the number of weights left
+-&gt;weight is an array containing the weights
+-&gt;S we need to achieve this weight
+-&gt;Handle termination cases
+-&gt;recursive calls
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index 0842b248..4146c074 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -1,18 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
-->N means the number of weights left
-->weight is an array containing the weights
-->S we need to achieve this weight
-->Handle termination cases
+-&gt;N means the number of weights left
+-&gt;weight is an array containing the weights
+-&gt;S we need to achieve this weight
+-&gt;Handle termination cases
 
-->option1. Donot keep weight[N-1] in basket
+-&gt;option1. Donot keep weight[N-1] in basket
 	which means we need to attain 
 	S from the next N-1 weights 
 	so call func(N-1,weight,S);
-->option2. keep weight[N-1] in basket 
+-&gt;option2. keep weight[N-1] in basket 
   which means we need to attain
   S-weight[N-1] next N-1 weights
   so call func(N-1,weight,S-weight[N-1]);
@@ -21,9 +24,10 @@
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index 6ba55888..c2b75b91 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
-->Handle termination cases
+-&gt;Handle termination cases
 
 if(!S)
 	return 1;
@@ -14,10 +17,11 @@
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 41e31911..3a948543 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -13,13 +16,13 @@
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
 	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -28,3 +31,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index 8ae9dc7e..9874fb14 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index 55cd72dd..bd36125f 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index cfbf9b73..8511622d 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -1,22 +1,26 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
-->Option1:
+-&gt;Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
-->Option2:
+-&gt;Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index c14f78e4..f9a5a3e8 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -1,29 +1,33 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
-->termination 
+-&gt;termination 
 	if(index==N)
 		return weight[index_needed_achieved]==curr_sum;
 
 if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
 
-->Option1:
+-&gt;Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
-	->no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-->Option2:
+	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
+-&gt;Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
-	->no_ways(index+1,index_needed_achieved,weights,curr_sum);
+	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum);
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index 48bf44a4..9594703b 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -16,7 +19,7 @@
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -28,3 +31,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index fd4c5731..d598a1e5 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -184,53 +184,47 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -291,4 +285,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 0d461ded..20acbb4b 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
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+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index dfa097d5..838f9e52 100644
--- a/src/lab/exp9/Objective.html
+++ b/src/lab/exp9/Objective.html
@@ -113,53 +113,47 @@ <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experime
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
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-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
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-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
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-
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-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -220,4 +214,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index 65e27b4f..6c7c7587 100644
--- a/src/lab/exp9/Procedure.html
+++ b/src/lab/exp9/Procedure.html
@@ -121,53 +121,47 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://feedback.vlabs.ac.in/" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
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-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -227,4 +221,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	</script>
 	
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index b65562b6..7f138f19 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -325,53 +325,47 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -434,4 +428,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index ec0f8ba2..61e20e4f 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -136,53 +136,47 @@ <h3>Recursive formulation </h3>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Download" style="color: white"> Lab Integration Kit Releases</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop" style="color: white">First Integration Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" style="color: white"> Summer Integration Workshop at IIT Guwahati</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop" style="color: white"> QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a class="text-normal-gray-small nounderline" href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" style="color: white"> A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a class="text-a-lightgreen" href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" style="text-decoration: underline;">Community</a>
-				<a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a class="text-a-lightgreen" href="http://outreach.vlabs.ac.in/" style="text-decoration: underline;"> Outreach Portal</a>
-				<a class="text-a-lightgreen" href="../faq.html" style="text-decoration: underline;"> FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact">
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a class="text-a-lightgreen" href="http://209.211.220.205/feedback/feedback.html" style="text-decoration: underline;"> Feedback</a>
-				<a class="text-a-lightgreen" href="mailto:support@vlabs.ac.in" style="text-decoration: underline;">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted">
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="../images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/TheVirtualLabs" target="_blank"> <img src="../images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="../images/social/linkedin.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="https://www.youtube.com/watch?v=mVBYNXLaDdg" target="_blank">
-				<img src="../images/social/youtube.png" style="border-radius: 50%; width: 38px;
-				height: 38px"/></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
@@ -243,4 +237,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 
 
-</body><!-- jQuery --></html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1.html b/src/lab/exp9/content1.html
index c690834b..8541015a 100755
--- a/src/lab/exp9/content1.html
+++ b/src/lab/exp9/content1.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -215,3 +218,4 @@ <h1> Permutation </h1>
 
 <p>Please insert your code here</p>
  -->
+</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1_1.html b/src/lab/exp9/content1_1.html
index 28c05bca..40cc8c30 100755
--- a/src/lab/exp9/content1_1.html
+++ b/src/lab/exp9/content1_1.html
@@ -1,4 +1,8 @@
-<form action="judge.py" method="get" name="judge">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+</textarea></fieldset></form></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1_2.html b/src/lab/exp9/content1_2.html
index 7464d2d1..ae51be58 100755
--- a/src/lab/exp9/content1_2.html
+++ b/src/lab/exp9/content1_2.html
@@ -1,6 +1,9 @@
-</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
 
-<br>
+<br/>
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1_3.html b/src/lab/exp9/content1_3.html
index b348b262..5885fa15 100755
--- a/src/lab/exp9/content1_3.html
+++ b/src/lab/exp9/content1_3.html
@@ -1,3 +1,8 @@
-&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content2.html b/src/lab/exp9/content2.html
index 7f40fdd9..5c6a1768 100755
--- a/src/lab/exp9/content2.html
+++ b/src/lab/exp9/content2.html
@@ -1,9 +1,14 @@
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content2_1.html b/src/lab/exp9/content2_1.html
index cd66935a..9486dd7d 100755
--- a/src/lab/exp9/content2_1.html
+++ b/src/lab/exp9/content2_1.html
@@ -1,5 +1,9 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br>
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content3.html b/src/lab/exp9/content3.html
index 020f8fbd..484845d1 100755
--- a/src/lab/exp9/content3.html
+++ b/src/lab/exp9/content3.html
@@ -1,11 +1,14 @@
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
+</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content3_1.html b/src/lab/exp9/content3_1.html
index a3039c79..029afe29 100755
--- a/src/lab/exp9/content3_1.html
+++ b/src/lab/exp9/content3_1.html
@@ -1,18 +1,15 @@
-
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
+<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content4.html b/src/lab/exp9/content4.html
index 72771ea4..95b02d8b 100755
--- a/src/lab/exp9/content4.html
+++ b/src/lab/exp9/content4.html
@@ -1,4 +1,9 @@
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
+    
 <!--codeId/Problem number has to be selected!-->
 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5.html b/src/lab/exp9/content5.html
index ce3fead3..a864a5d8 100755
--- a/src/lab/exp9/content5.html
+++ b/src/lab/exp9/content5.html
@@ -1,34 +1,34 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-</div> <!--contentLeft -->
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				</div>
-			</article>
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5_1.html b/src/lab/exp9/content5_1.html
index 6fda2ca3..4450d764 100755
--- a/src/lab/exp9/content5_1.html
+++ b/src/lab/exp9/content5_1.html
@@ -1,13 +1,13 @@
-
-
-
-
-
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
-
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5_2.html b/src/lab/exp9/content5_2.html
index 8cb2e3da..8d76704a 100755
--- a/src/lab/exp9/content5_2.html
+++ b/src/lab/exp9/content5_2.html
@@ -1,7 +1,11 @@
-</div> <!--contentLeft -->
-<div id="contentRight">
+<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
+</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5_3.html b/src/lab/exp9/content5_3.html
index 60732c8c..54d8235f 100755
--- a/src/lab/exp9/content5_3.html
+++ b/src/lab/exp9/content5_3.html
@@ -1,18 +1,22 @@
- </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
    
    
-</div> <!--contentRight -->
-				</div>
-			</article>
+ <!--contentRight -->
+				
+			
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content_template.html b/src/lab/exp9/content_template.html
index 94ecf2ff..0c90db92 100755
--- a/src/lab/exp9/content_template.html
+++ b/src/lab/exp9/content_template.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -12,37 +16,37 @@ <h2>Introduction </h2>
 <li><h2>Problem 1:</h2>
 <p> 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-<br><hr />
-<br>
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-<br><hr />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
@@ -50,7 +54,7 @@ <h3>Problem 1</h3>
 <p>
 </p>
 
-<br>
+<br/>
 
 <h3>Problem 2</h3>
 <p>
@@ -70,3 +74,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/default.html b/src/lab/exp9/default.html
index 1c8a55c7..332375a3 100644
--- a/src/lab/exp9/default.html
+++ b/src/lab/exp9/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/edit_area/plugins/charmap/popup.html b/src/lab/exp9/edit_area/plugins/charmap/popup.html
index 4b549db8..7dd6ce4c 100755
--- a/src/lab/exp9/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp9/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/furtherReadings.html b/src/lab/exp9/furtherReadings.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp9/furtherReadings.html
+++ b/src/lab/exp9/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/lab.html b/src/lab/exp9/lab.html
index e1545fad..6c28b42e 100755
--- a/src/lab/exp9/lab.html
+++ b/src/lab/exp9/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Permutation </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Permutation </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/lab_test.html b/src/lab/exp9/lab_test.html
index 12c13149..72194efe 100755
--- a/src/lab/exp9/lab_test.html
+++ b/src/lab/exp9/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/objective.html b/src/lab/exp9/objective.html
index 90cec68f..5cca27b8 100755
--- a/src/lab/exp9/objective.html
+++ b/src/lab/exp9/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/prob_desc.html b/src/lab/exp9/prob_desc.html
index 3457ba01..a1d5b741 100755
--- a/src/lab/exp9/prob_desc.html
+++ b/src/lab/exp9/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
-						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
-						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
-						Output:6<br />
-						Input: 1 2 3 4 5 6 7 8<br />
-						Output: 1<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
-	positive integers (each &lt=10^9).
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br />
-						Output:6<br />
-						Input: 6 <br />
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-
-			</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
+						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
+						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
+						Output:6<br/>
+						Input: 1 2 3 4 5 6 7 8<br/>
+						Output: 1<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
+	positive integers (each &lt;=10^9).
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br/>
+						Output:6<br/>
+						Input: 6 <br/>
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+
+			</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index 08bc937f..5cf515c3 100755
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission045226925.html b/src/lab/exp9/submission045226925.html
index 643e1dfb..5923927d 100644
--- a/src/lab/exp9/submission045226925.html
+++ b/src/lab/exp9/submission045226925.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,11 +220,10 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -238,12 +240,12 @@ <h1> Experiment 10  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
@@ -252,35 +254,35 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Experiment 10  </h1>
 </td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
 </td><td>63
 </td><td>63
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission093704599.html b/src/lab/exp9/submission093704599.html
index 4b127e59..41e5d8d7 100644
--- a/src/lab/exp9/submission093704599.html
+++ b/src/lab/exp9/submission093704599.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,11 +220,10 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -235,13 +237,13 @@ <h1> Experiment 10  </h1>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -251,35 +253,35 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -309,21 +311,21 @@ <h1> Experiment 10  </h1>
 3 9 1 6 3 7 9 6 10 3 3 1 2 8 9 8 10 9 3 3 5
 </td><td>12
 </td><td>12
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -336,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission188928472.html b/src/lab/exp9/submission188928472.html
index 50d1934d..d68fa609 100644
--- a/src/lab/exp9/submission188928472.html
+++ b/src/lab/exp9/submission188928472.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,11 +220,10 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -238,12 +240,12 @@ <h1> Experiment 10  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
@@ -252,51 +254,50 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -309,10 +310,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission293677335.html b/src/lab/exp9/submission293677335.html
index d60df404..0b5b14e1 100644
--- a/src/lab/exp9/submission293677335.html
+++ b/src/lab/exp9/submission293677335.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 9  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1> Experiment 9  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -236,53 +238,52 @@ <h1> Experiment 9  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -299,7 +300,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -314,13 +315,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -333,10 +334,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission475438203.html b/src/lab/exp9/submission475438203.html
index 3952155b..f1e256d2 100644
--- a/src/lab/exp9/submission475438203.html
+++ b/src/lab/exp9/submission475438203.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -237,12 +239,12 @@ <h1> Experiment 10  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
@@ -251,41 +253,40 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -302,7 +303,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -317,13 +318,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -336,10 +337,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission535104989.html b/src/lab/exp9/submission535104989.html
index 71df3c69..eb8bf2d2 100644
--- a/src/lab/exp9/submission535104989.html
+++ b/src/lab/exp9/submission535104989.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,9 +220,8 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -233,13 +235,13 @@ <h1> Experiment 10  </h1>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -248,41 +250,40 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -296,13 +297,13 @@ <h4> HINTS </h4><br>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
 	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -314,13 +315,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -333,10 +334,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission622055803.html b/src/lab/exp9/submission622055803.html
index 73db5cb9..ba44747a 100644
--- a/src/lab/exp9/submission622055803.html
+++ b/src/lab/exp9/submission622055803.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 9  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 9  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -237,47 +239,47 @@ <h1> Experiment 9  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
 }
 	</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -298,23 +300,22 @@ <h1> Experiment 9  </h1>
 </td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
 </td><td>63
 </td><td>63
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -327,10 +328,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission857090763.html b/src/lab/exp9/submission857090763.html
index 3952155b..f1e256d2 100644
--- a/src/lab/exp9/submission857090763.html
+++ b/src/lab/exp9/submission857090763.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -237,12 +239,12 @@ <h1> Experiment 10  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
@@ -251,41 +253,40 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -302,7 +303,7 @@ <h4> HINTS </h4><br>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -317,13 +318,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -336,10 +337,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission906685525.html b/src/lab/exp9/submission906685525.html
index 4d20da31..d08bd177 100644
--- a/src/lab/exp9/submission906685525.html
+++ b/src/lab/exp9/submission906685525.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -234,13 +236,13 @@ <h1> Experiment 10  </h1>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -249,35 +251,35 @@ <h1> Experiment 10  </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -307,21 +309,21 @@ <h1> Experiment 10  </h1>
 3 9 1 6 3 7 9 6 10 3 3 1 2 8 9 8 10 9 3 3 5
 </td><td>12
 </td><td>12
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -334,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission910376433.html b/src/lab/exp9/submission910376433.html
index 361de29f..a63693cc 100644
--- a/src/lab/exp9/submission910376433.html
+++ b/src/lab/exp9/submission910376433.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,10 +220,9 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -234,13 +236,13 @@ <h1> Experiment 10  </h1>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -250,41 +252,40 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -298,13 +299,13 @@ <h4> HINTS </h4><br>
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
 	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -316,13 +317,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -335,10 +336,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission957349292.html b/src/lab/exp9/submission957349292.html
index e73099da..10c42ff2 100644
--- a/src/lab/exp9/submission957349292.html
+++ b/src/lab/exp9/submission957349292.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Experiment 10  </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,12 +220,11 @@ <h1> Experiment 10  </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 		
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -239,12 +241,12 @@ <h1> Experiment 10  </h1>
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
 int ans=0;
-for(i=0;i< N;i++)
+for(i=0;i&lt; N;i++)
 	ans+=no_ways(0,i,weights,0);
 printf("%d\n",ans);
 return 0;
@@ -253,35 +255,35 @@ <h1> Experiment 10  </h1>
 
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -302,23 +304,22 @@ <h1> Experiment 10  </h1>
 </td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
 </td><td>63
 </td><td>63
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -331,10 +332,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/test.html b/src/lab/exp9/test.html
index 21c00d53..a1c2fb03 100755
--- a/src/lab/exp9/test.html
+++ b/src/lab/exp9/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/theory.html b/src/lab/exp9/theory.html
index aa5aa2d7..c33b13f7 100755
--- a/src/lab/exp9/theory.html
+++ b/src/lab/exp9/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,22 +35,20 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p></p><h3>Problem 1</h3>
+<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -60,16 +61,17 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
+		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/expPh1/contenttempplate.html b/src/lab/expPh1/contenttempplate.html
index 0bfae78c..b1ebd0eb 100755
--- a/src/lab/expPh1/contenttempplate.html
+++ b/src/lab/expPh1/contenttempplate.html
@@ -1,17 +1,20 @@
 <!DOCTYPE html>
-<html>
-<head></head>
-<body>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
-  <header id="experiment-header" class="default">
+  <header class="default" id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
-      <img src="../images/logo.jpg" />
+    <div class="logo" id="experiment-header-logo">
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <a href="../index.html">Problem Solving Lab</a>	
     </div>
 
@@ -21,14 +24,14 @@
 
   <article id="experiment-article">
   
-     <div id="experiment-article-breadcrumb" class="breadcrumb">
+     <div class="breadcrumb" id="experiment-article-breadcrumb">
      </div>
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         Heading
       </header>
 
-      <nav id="experiment-article-navigation" class="default">
+      <nav class="default" id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
         </ul>
       </nav>
@@ -37,18 +40,15 @@
 
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
-	    <img src="../images/introduction.jpg" />
+          <div class="icon" id="experiment-article-section-1-icon">
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
          
         </div>
       </section>
@@ -56,19 +56,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
          <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
 	</p>
@@ -80,19 +77,16 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           
 	    <p>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
@@ -103,19 +97,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
 	<p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p> 
@@ -127,63 +118,59 @@
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -192,24 +179,21 @@
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows.
 	      </p>
 		<p>
-<ol>
+</p><ol>
 <li> Write the code for the problem or upload a solution. </li>
 <li> Press the 'i' button get info about the problem which you have to solve.</li>
 <li> If you are finding it difficult to solve the solution, then you can use the 4 levels of incresingly descriptive hints, but try to use minimum number of hints.</li>
@@ -218,26 +202,23 @@
 <li> To execute the code and see output, press the execute button. </li>
 </ol>
 		<p>
-	  </div>
+	  </p></div>
 	
         </section>
 			
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -265,7 +246,7 @@
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -273,20 +254,59 @@
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/expPh1/default.html b/src/lab/expPh1/default.html
index 9a7ea39f..c5416707 100644
--- a/src/lab/expPh1/default.html
+++ b/src/lab/expPh1/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,20 +393,59 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/expPh1/newcontenttempalte.html b/src/lab/expPh1/newcontenttempalte.html
index 80d19855..8230aaee 100755
--- a/src/lab/expPh1/newcontenttempalte.html
+++ b/src/lab/expPh1/newcontenttempalte.html
@@ -1,26 +1,25 @@
 <!-- This file needs to be edited by the lab developer to suit
-the requirements of their lab in particular.-->
-
-<!-- Add class="default" to include any element as it is
+the requirements of their lab in particular.--><!-- Add class="default" to include any element as it is
 specified in default.html. 
 Do not include class="default" to the elements that you want to
-edit -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+edit --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> 
 
-  <header id="experiment-header" class="default">
+  <header class="default" id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
      
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
      
       <a href="../index.html">Problem Solving Lab</a>	
     </div>
@@ -34,17 +33,17 @@
   <article id="experiment-article">
   
     
-     <div id="experiment-article-breadcrumb" class="breadcrumb">
+     <div class="breadcrumb" id="experiment-article-breadcrumb">
      </div>
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
        
      HEADING
         
       </header>
 
     
-      <nav id="experiment-article-navigation" class="default">
+      <nav class="default" id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
         
         </ul>
@@ -57,23 +56,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             
 
 
@@ -85,20 +81,17 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
-       <div id="experiment-article-section-2-content" 
-        class="content">
+       <div class="content" id="experiment-article-section-2-content">
 
 
 
@@ -109,19 +102,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
 
         <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
@@ -135,19 +125,16 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
  <p>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
          </p>
@@ -158,19 +145,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
 
 	<p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
@@ -182,63 +166,59 @@
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -247,24 +227,21 @@
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows.
 	    </p>
 		<p>
-<ol>
+</p><ol>
 <li> Write the code for the problem or upload a solution. </li>
 <li> Press the 'i' button get info about the problem which you have to solve.</li>
 <li> If you are finding it difficult to solve the solution, then you can use the 4 levels of incresingly descriptive hints, but try to use minimum number of hints.</li>
@@ -274,26 +251,23 @@
 </ol>
 		<p>
 
-	  </div>
+	  </p></div>
 	
         </section>
 			
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -321,7 +295,7 @@
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -329,20 +303,59 @@
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
-      <!-- Put the content that you want to appear here -->
-    </footer>
+    <footer class="default" id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp_template.php b/src/lab/exp_template.php
index de80cfc5..6af1ba63 100644
--- a/src/lab/exp_template.php
+++ b/src/lab/exp_template.php
@@ -2,6 +2,8 @@
 <html lang="en" class="no-js">
 
 <head>
+<script class='gtm'>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-W59SWTR');</script>
+
   
   <!--It is a good practice to declare the encoding even for an 
   English Web site. One function of this is to tag is to "reset"
diff --git a/src/lab/faq.html b/src/lab/faq.html
index b304a6f4..cec4bfe3 100755
--- a/src/lab/faq.html
+++ b/src/lab/faq.html
@@ -1,31 +1,34 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
-    <link rel="shortcut icon" href="images/favicon.ico">
+    <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
+    <link href="css/style.css" rel="stylesheet"/>
    
 	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
   <div id="top">
     	<header>
 	<!-- Navigation -->
@@ -33,13 +36,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>
 
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -47,7 +50,7 @@
 
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        <!--	<input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" />-->
 			                        </form>
@@ -55,16 +58,14 @@
 			                </ul>
 
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
-			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html#contact" class="menu-a" >CONTACT</a>
+			                    
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 
@@ -77,61 +78,60 @@
 	    </nav>
 	</header>
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">Frequently Asked Questions</h2>
 					
-					<div class="row" style="margin-left: 5px; margin-right: 35px;text-align: justify;" >
+					<div class="row" style="margin-left: 5px; margin-right: 35px;text-align: justify;">
 					<p class="text-h3-darkblue-bold">Q1. What are Virtual labs?</p>
 <p> Virtual Labs are intended to augment the learning of science and engineering subjects through performing experiments. The experiments are designed either as simulations or as remote triggered. A remote triggered lab allows a user to connect to real equipment using a web browser. There are currently around 150 and labs and 1500 experiments at various stages of development and deployment. They are currently hosted at vlabs.ac.in.
 
 Virtual Labs is an initiative of Ministry of Human Resources, India.
 </p>
 <p class="text-h3-darkblue-bold">Q2. What are the objectives of the Virtual Labs?</p>
-<p>The broad objectives of the ‘Virtual Lab’ as stated in  website are:<br>
-1. To provide remote access to Labs in various disciplines<br> 
-2. To arouse curiosity in students and  help them learn  concepts through remote experimentation  <br>
-3. To provide a complete ‘Learning Management System’ (LMS) around the Virtual labs –<br>
-a. access to web-resources, videos,  animated demonstrations and <br>
-b. self evaluation <br>
-4. To provide access to resources available  to only a limited number of users due to constraints of time and physical locations.<br>
+<p>The broad objectives of the ‘Virtual Lab’ as stated in  website are:<br/>
+1. To provide remote access to Labs in various disciplines<br/> 
+2. To arouse curiosity in students and  help them learn  concepts through remote experimentation  <br/>
+3. To provide a complete ‘Learning Management System’ (LMS) around the Virtual labs –<br/>
+a. access to web-resources, videos,  animated demonstrations and <br/>
+b. self evaluation <br/>
+4. To provide access to resources available  to only a limited number of users due to constraints of time and physical locations.<br/>
 </p>
 <p class="text-h3-darkblue-bold">Q3. What are the various types of Virtual Labs?</p>
-<p>There are two types of Virtual Labs:<br>
+<p>There are two types of Virtual Labs:<br/>
 <b>Simulation Based Virtual Labs:</b>  In these Virtual Labs, the experiments
 are modeled using mathematical equations.  The simulations are carried out
 remotely at a high end server, and the results are communicated to the student
 over the internet.  This class of Virtual Labs, at best, mimics the real-world
 scenarios/experiments.  Simulation based Virtual Labs are scalable and can
-cater to a large number of simultaneous users.<br><b>Remote Triggered Virtual Labs:</b> In these Virtual Labs, the actual experiments are triggered remotely.  The output of the experiment (being conducted remotely) is communicated back to the student over the internet.  This class of Virtual Labs, gives the student the output of real-time experiments.  Remote Triggered Virtual Labs are difficult to scale and can cater to a limited number of users.  Typically, time-slots are booked before conducting such experiments.</p>	 
+cater to a large number of simultaneous users.<br/><b>Remote Triggered Virtual Labs:</b> In these Virtual Labs, the actual experiments are triggered remotely.  The output of the experiment (being conducted remotely) is communicated back to the student over the internet.  This class of Virtual Labs, gives the student the output of real-time experiments.  Remote Triggered Virtual Labs are difficult to scale and can cater to a limited number of users.  Typically, time-slots are booked before conducting such experiments.</p>	 
 <p class="text-h3-darkblue-bold"> Q4. Who are the intended users of the Virtual Labs?</p>
 <p>
-The intended beneficiaries of the projects are: <br>1. All students and Faculty
+The intended beneficiaries of the projects are: <br/>1. All students and Faculty
 Members of Science and Engineering Colleges who do not have access to good
-lab-facilities and/or instruments.<br> 2. High-school students, whose
+lab-facilities and/or instruments.<br/> 2. High-school students, whose
 inquisitiveness will be triggered, possibly motivating them to take up
-higher-studies. <br> 3. Researchers in different institutes who can collaborate /
-share equipment and resources. <br> 4. Different engineering colleges, who can benefit from the content and related teaching resources. The project has completely fulfilled the requirements of the targeted beneficiaries (and even gone beyond). An eco-system has evolved around Virtual Labs, where the community has become involved in evolving and benefitting from the project.</p>
+higher-studies. <br/> 3. Researchers in different institutes who can collaborate /
+share equipment and resources. <br/> 4. Different engineering colleges, who can benefit from the content and related teaching resources. The project has completely fulfilled the requirements of the targeted beneficiaries (and even gone beyond). An eco-system has evolved around Virtual Labs, where the community has become involved in evolving and benefitting from the project.</p>
 <p class="text-h3-darkblue-bold">Q5. How can I access the Virtual Labs? </p>
-<p>All Virtual Labs can be accessed through a common website: <a href="http://vlabs.ac.in/"
-  target="_blank">www.vlabs.ac.in</a>. At the user end, a PC and broadband connectivity enables the user to access Virtual Labs.</p>	 
+<p>All Virtual Labs can be accessed through a common website: <a href="http://vlabs.ac.in/" target="_blank">www.vlabs.ac.in</a>. At the user end, a PC and broadband connectivity enables the user to access Virtual Labs.</p>	 
 <p class="text-h3-darkblue-bold">Q6. Is it free to use?</p>
 <p>Yes, it is free of cost to the user.</p>	 
 <p class="text-h3-darkblue-bold">Q7. How I can find lab of my interest?</p>
 <p>The Virtual labs are divided into two categories on the Virtual Labs home
-  page (www.vlabs.ac.in) <br>
-a.	Discipline Wise <br>
-b.	Institute Wise	<br> 
- 	The user can click on any of the categories to find out the lab of his preference. The user can also search for the virtual labs on the home page itself. There are two search options:-<br>
-i.	Search by the name of the Virtual Lab: Here the user can type-in the name of the virtual lab of his preference from any institute or Discipline.<br>
-ii.	Search by Discipline: Here the user can choose discipline of his preference from the drop down menu. After searching the desired Virtual lab, the user has to make a single click on the link, which would take him to that particular Lab-specific home page. This method of accessing the virtual lab is common to all the Labs available on the vlab.co.in homepage.<br>
+  page (www.vlabs.ac.in) <br/>
+a.	Discipline Wise <br/>
+b.	Institute Wise	<br/> 
+ 	The user can click on any of the categories to find out the lab of his preference. The user can also search for the virtual labs on the home page itself. There are two search options:-<br/>
+i.	Search by the name of the Virtual Lab: Here the user can type-in the name of the virtual lab of his preference from any institute or Discipline.<br/>
+ii.	Search by Discipline: Here the user can choose discipline of his preference from the drop down menu. After searching the desired Virtual lab, the user has to make a single click on the link, which would take him to that particular Lab-specific home page. This method of accessing the virtual lab is common to all the Labs available on the vlab.co.in homepage.<br/>
 In some of the labs, the user will first have to register prior to conducting the experiments.	 
 </p> 	 	 
 <p class="text-h3-darkblue-bold">Q8. What are the software requirements for Virtual Labs?</p>
@@ -140,8 +140,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
   on <a href="http://vlabs.ac.in/pre-requisites.html"> pre-requisites </a> link
   to know the information about how to download, install and use the software.</p>	 
 <p class="text-h3-darkblue-bold">Q9. What are the system configuration needed to run Workshops ? </p>
-<p>System configuration required for running Virtual Labs:<br> 1) Browser: Firefox,
-Chrome <br> 2) Plugins: Flash, Java 1.6 version, and IcedTea<br> 3) JavaScript should be enabled on the browser<br> 4) No pop-up blockers<br> 5) Internet connection (2-4 mbps)<br> 6) Need an Electronics Faculty while running some of the adders, multiplexers experiments.</p> 	 	 
+<p>System configuration required for running Virtual Labs:<br/> 1) Browser: Firefox,
+Chrome <br/> 2) Plugins: Flash, Java 1.6 version, and IcedTea<br/> 3) JavaScript should be enabled on the browser<br/> 4) No pop-up blockers<br/> 5) Internet connection (2-4 mbps)<br/> 6) Need an Electronics Faculty while running some of the adders, multiplexers experiments.</p> 	 	 
 <p class="text-h3-darkblue-bold">Q10. Our college internet network has firewalls. Should any specific care be taken? </p>
 <p>If  Internet network operates behind a firewall, the  communication ports to facilitate VLab network traffic should be open. Specifically ports 3306, 5900, 5902, and 8700 will need to be opened.</p>
 <p class="text-h3-darkblue-bold">Q11. When the Virtual Labs can be used? </p>
@@ -149,8 +149,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 <p class="text-h3-darkblue-bold">Q12. Does the  Virtual Lab provide the  LMS that the objectives mention?</p>
 <p>Virtual Lab project provides a complete Leaning Management System. For most users, Virtual Lab provides all the relevant material at one place including the Objectives of the Experiment, Procedure, Lab manual, Pre- and Post-experiment quizzes, additional Lab resources, in addition to the Virtual Lab experiment. Most labs also have an associated question bank.</p>
 <p class="text-h3-darkblue-bold">Q13. How do I register for using the Virtual Labs? </p>
-<p>As mentioned earlier, Virtual Labs are divided into two categories: simulation based labs and remote triggered labs. Registration requirements are different for the two categories.<br>
-<b>Simulation based Labs:</b> Many of the simulation based labs do not require registration. You can directly perform the experiment without registering yourself. On the other hand, some of the simulation virtual labs require registration for which the user can go to the respective website do a one-time registration.<br>
+<p>As mentioned earlier, Virtual Labs are divided into two categories: simulation based labs and remote triggered labs. Registration requirements are different for the two categories.<br/>
+<b>Simulation based Labs:</b> Many of the simulation based labs do not require registration. You can directly perform the experiment without registering yourself. On the other hand, some of the simulation virtual labs require registration for which the user can go to the respective website do a one-time registration.<br/>
 <b>Remote Triggered Labs:</b> To access a remote triggered lab, a user has to book a slot. For booking a slot, you have to register yourself first and then book a slot from the slot chart. All the available /booked slots can be viewed on this chart. Once a request for slot-booking is made, all the information regarding the user id, password and the slot booked will be sent to the user’s email address provided by the user at the time of registration. Once registered, a user can login using the same credentials every time. This registration has to be done by the user separately for each of the remote triggered virtual labs.</p>	 
 <p class="text-h3-darkblue-bold">Q14. What benefit will Virtual Lab provide?</p>
 <p>Virtual Lab is a complete Learning Management System. All the relevant information including the theory, lab-manual, additional web-resources, video-lectures, animated demonstrations and self-evaluation are available at a common place. Virtual Labs can be used in a complementary fashion to augment the efficacy of theory-based lectures. Small projects can also be carried out using some of the Virtual Labs. Virtual Labs can be effectively used to give lab-demonstrations to large class.</p>
@@ -159,10 +159,10 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
   I already have a Physical Lab in my college/institute.
 </p>
 <p class="text-h3-darkblue-bold">Q16. When I do an experiment how do I know if the experiment I did is done right?</p>
-<p>Virtual Labs will provide to the students the result of an experiment by one of the following methods (or possibly a combination):<br> 
-1. Modelling the physical phenomenon by a set of equations and carrying out simulations to yield the result of the particular experiment. <br>
-2. Providing a corresponding measurement data for the Virtual Lab experiment based previously carried out measurements on an actual system. <br>
-3. Remotely triggering an experiment in an actual lab and providing the student the result of the experiment through the computer interface.<br></p>	
+<p>Virtual Labs will provide to the students the result of an experiment by one of the following methods (or possibly a combination):<br/> 
+1. Modelling the physical phenomenon by a set of equations and carrying out simulations to yield the result of the particular experiment. <br/>
+2. Providing a corresponding measurement data for the Virtual Lab experiment based previously carried out measurements on an actual system. <br/>
+3. Remotely triggering an experiment in an actual lab and providing the student the result of the experiment through the computer interface.<br/></p>	
 <p class="text-h3-darkblue-bold">Q17. How can a college conduct a Virtual lab Workshop? What to do?</p>
 <p> Drop a mail to <a href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a></p>
 <p class="text-h3-darkblue-bold">Q18. What does one can do if got stuck?</p>
@@ -173,10 +173,9 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 <p class="text-h3-darkblue-bold">Q20. How does one can contribute to Virtual-Labs?</p>
 <p> vlabs-dev is the main portal for Virtual Labs Development. Please visit
   the contributing section
-  of <a href="http://vlabs-dev.vlabs.ac.in/community/contributing.html"
-  target="_blank">VLABS DEV</a> page.
+  of <a href="http://vlabs-dev.vlabs.ac.in/community/contributing.html" target="_blank">VLABS DEV</a> page.
 							
-							</div>
+							</p></div>
 							
 							
 						
@@ -188,67 +187,55 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 
 			
 	</div> <!-- content div -->
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen" style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
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-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 		
 
-</div> <!-- top div -->
+ <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -301,5 +288,6 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 	
 	
-</html>
 
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/index.html b/src/lab/index.html
index a5a58e81..a5090a4c 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="images/favicon.ico">
+     <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
+			                		<form action="search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,14 @@
 			                </ul>
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
-			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+			                    
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,27 +80,27 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="List of experiments.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a href="Target Audience.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a href="Courses Aligned.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a href="http://209.211.220.205/feedback/feedback.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br>
+<br/>
 <p>
 		Welcome to the Problem Solving Virtual Lab developed at IIIT Hyderabad. The interactive experiments in this lab will give the students an opportunity for learning and better understanding of using computer programming as a tool to solve basic to advanced problems.
 	  </p>
@@ -113,66 +114,54 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://209.211.220.205/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -223,4 +212,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/themes/green-icon/css/style.css b/src/themes/green-icon/css/style.css
index 00ece207..87de33c5 100644
--- a/src/themes/green-icon/css/style.css
+++ b/src/themes/green-icon/css/style.css
@@ -10,6 +10,11 @@ Version: 1.0
 body {
     overflow-x: hidden;
     font-family:'Raleway' !important;
+    min-height: 100%;
+}
+
+html {
+    height: 100%;
 }
 
 p {
@@ -320,6 +325,102 @@ a.active {
 margin-top:120px;
 }
 
+
+#top {
+    min-height: 100vh;
+    display: grid;
+    grid-template-rows: max-content auto max-content;
+}
+
+
+#footer {
+  color: #eee;
+  font-size: 14px;
+  width: 100%;
+  bottom: 0;
+}
+
+#footer .footer-top {
+  background: #111;
+   padding: 15px 0 0px 0;
+}
+
+#footer .row {
+    padding-bottom: 2rem;
+}
+
+#footer .footer-top .footer-info h3 {
+  font-size: 34px;
+  margin: 0 0 20px 0;
+  padding: 2px 0 2px 10px;
+  line-height: 1;
+  font-family: "Open Sans", sans-serif;
+  font-weight: 700;
+  letter-spacing: 3px;
+  border-left: 4px solid #18d26e;
+}
+
+#footer .footer-top p {
+  font-size: 1.4rem;
+  margin-bottom: 0;
+  color: #eee;
+}
+
+#footer .footer-top .social-links a {
+  font-size: 18px;
+  display: inline-block;
+  background: #333;
+  color: #eee;
+  line-height: 1;
+  padding: 8px 0;
+  margin-right: 4px;
+  border-radius: 50%;
+  text-align: center;
+  width: 36px;
+  height: 36px;
+  transition: 0.3s;
+}
+
+#footer .footer-top .social-links a:hover {
+  background: #3cd6ed;
+  color: #fff;
+}
+
+#footer .footer-top h4 {
+  font-size: 14px;
+  color: #fff; 
+  position: relative;
+  padding-bottom: 12px;
+}
+
+#footer .footer-top h4::before, #footer .footer-top h4::after {
+  content: '';
+  position: absolute;
+  left: 0;
+  bottom: 0;
+  height: 2px;
+}
+
+#footer .footer-top h4::before {
+  right: 0;
+  background: #555;
+}
+
+#footer .footer-top h4::after {
+  background: #3EC1D5;
+  width: 60px;
+}
+#footer .footer-top i {
+  color:#fff;
+}
+
+#footer .footer-top a {
+  color:#fff;
+}
+
+
+
+
 /*******************************************************************************/
 /*****************************CUSTOME STYLE*************************************/
 /*******************************************************************************/
diff --git a/src/themes/green-icon/search-result.html b/src/themes/green-icon/search-result.html
index 1b2f9564..bed8dbee 100755
--- a/src/themes/green-icon/search-result.html
+++ b/src/themes/green-icon/search-result.html
@@ -1,31 +1,33 @@
 <!DOCTYPE html>
-<html lang="en">
-
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
-    <link rel="shortcut icon" href="images/favicon.ico">
+    <link href="images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet">
+    <link href="css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="vendors/owl-carousel/owl.theme.css">
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="vendors/font-awesome/css/font-awesome.css">
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -33,13 +35,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -47,24 +49,24 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="search-result.html">
-			                        	<input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
-			                        	<input type="submit" value="" class="search-button" />
+			                		<form action="search-result.html" method="get">
+			                        	<input class="search-textbox" id="q" name="q" placeholder="SEARCH FOR A LAB" type="text"/>
+			                        	<input class="search-button" type="submit" value=""/>
 			                        </form>
 			                	</li>
 			                </ul>
 			                
 			               <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html">HOME</a>
 			                    </li>
 			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/index.html#contact" class="menu-a" >CONTACT</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,30 +81,30 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
 
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; ">Disciplines and Domains</h2>
 
 
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
-							<a href="electronics-and-communications-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600;"> Electronics & Communications</h3></a>
-							<a href="computer-science-and-engineering-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Computer Science & Engineering</h3></a>
-							<a href="electrical-engineering-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Electrical Engineering</h3></a>
-							<a href="mechanical-engineering-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Mechanical Engineering</h3></a>
-							<a href="chemical-sciences-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Chemical Engineering</h3></a>
-							<a href="biotechnology-and-biochemical-engineering-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Biotechnology & Biochemical Engineering</h3></a>
-							<a href="civil-engineering-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Civil Engineering</h3></a>
-							<a href="physical-sciences-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Physical Sciences</h3></a>
-							<a href="chemical-sciences-labs.html" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Chemical Sciences</h3></a>
+							<a class="sidebar-a" href="electronics-and-communications-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600;"> Electronics &amp; Communications</h3></a>
+							<a class="sidebar-a" href="computer-science-and-engineering-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Computer Science &amp; Engineering</h3></a>
+							<a class="sidebar-a" href="electrical-engineering-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Electrical Engineering</h3></a>
+							<a class="sidebar-a" href="mechanical-engineering-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Mechanical Engineering</h3></a>
+							<a class="sidebar-a" href="chemical-sciences-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Chemical Engineering</h3></a>
+							<a class="sidebar-a" href="biotechnology-and-biochemical-engineering-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Biotechnology &amp; Biochemical Engineering</h3></a>
+							<a class="sidebar-a" href="civil-engineering-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Civil Engineering</h3></a>
+							<a class="sidebar-a" href="physical-sciences-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Physical Sciences</h3></a>
+							<a class="sidebar-a" href="chemical-sciences-labs.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Chemical Sciences</h3></a>
 						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
@@ -131,36 +133,36 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; ">D
 		
 	<footer>
 		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
+			<div class="col-md-4 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<div><a href="http://vlead.vlabs.ac.in/2015/07/19/lab-integration-kit-1-0-0-released/" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit 1.0.0 Released</a></div>
-				<div><a href="http://vlead.vlabs.ac.in/2015/07/15/summer-sprint-integration-workshop-at-iit-guwahati/" class="text-normal-gray-small nounderline" style="color: white" > Summer Sprint Integration Workshop at IIT Guwahati</a></div>
-				<div><a href="http://vlead.vlabs.ac.in/2014/12/16/a-new-set-of-35-virtual-labs-on-portable-media/" class="text-normal-gray-small nounderline" style="color: white" > A new set of 35 Virtual Labs on Portable Media</a></div>
+				<div><a class="text-normal-gray-small nounderline" href="http://vlead.vlabs.ac.in/2015/07/19/lab-integration-kit-1-0-0-released/" style="color: white"> Lab Integration Kit 1.0.0 Released</a></div>
+				<div><a class="text-normal-gray-small nounderline" href="http://vlead.vlabs.ac.in/2015/07/15/summer-sprint-integration-workshop-at-iit-guwahati/" style="color: white"> Summer Sprint Integration Workshop at IIT Guwahati</a></div>
+				<div><a class="text-normal-gray-small nounderline" href="http://vlead.vlabs.ac.in/2014/12/16/a-new-set-of-35-virtual-labs-on-portable-media/" style="color: white"> A new set of 35 Virtual Labs on Portable Media</a></div>
 			</div>
 			
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 <!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
 				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<div><a href="http://vlead.virtual-labs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Blog</a></div>
-				<div><a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div>
-				<div><a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a></div>
+				<div><a class="text-a-lightgreen" href="http://vlead.virtual-labs.ac.in/" style="text-decoration: underline;"> Blog</a></div>
+				<div><a class="text-a-lightgreen" href="http://www.sakshat.ac.in/" style="text-decoration: underline;"> SAKSHAT PORTAL</a></div>
+				<div><a class="text-a-lightgreen" href="http://118.102.191.38/feedback/Registration.html" style="text-decoration: underline;"> Nodal Center</a></div>
 			</div>
 			
-			<div class="col-md-3 border-right-green-dotted" >
+			<div class="col-md-3 border-right-green-dotted">
 <!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<div class="text-h2-lightblue-small"> Contact : <i class="fa fa-envelope-o" style="color: white; font-size: 0.8em;"></i> <a class="text-a-lightgreen" style="text-decoration: underline; font-size: 1.0em;" href="mailto:support@vlab.co.in">support@vlabs.ac.in</a></div>
-				<div><a href="http://118.102.191.38/feedback/feedback.html" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div class="text-h2-lightblue-small"> Contact : <i class="fa fa-envelope-o" style="color: white; font-size: 0.8em;"></i> <a class="text-a-lightgreen" href="mailto:support@vlab.co.in" style="text-decoration: underline; font-size: 1.0em;">support@vlabs.ac.in</a></div>
+				<div><a class="text-a-lightgreen" href="http://118.102.191.38/feedback/feedback.html" style="text-decoration: underline;"> FEEDBACK</a></div>
 			</div>
 			
-			<div class="col-md-2 border-right-green-dotted" >
+			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/" class="text-a-lightgreen nounderline"   target="_blank"> <img src="images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
 			</div>
 			
  		</div>
@@ -169,10 +171,10 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -225,4 +227,5 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	
 	
 	
-</html>
+
+</body><!-- jQuery --></html>
\ No newline at end of file

From d31ac76d3310dcf29690c79d67e72a4d9251473a Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Wed, 1 Jul 2020 14:37:17 +0530
Subject: [PATCH 03/22] fix: experiments

---
 src/lab/exp1/Hints1/Hint_0.html               |   8 +-
 src/lab/exp1/Hints1/Hint_1.html               |  15 +-
 src/lab/exp1/Hints1/Hint_2.html               |  15 +-
 src/lab/exp1/Hints1/Hint_3.html               |  15 +-
 src/lab/exp1/Hints1/Hint_4.html               |  11 +-
 src/lab/exp1/Hints2/Hint_0.html               |   8 +-
 src/lab/exp1/Hints2/Hint_1.html               |  14 +-
 src/lab/exp1/Hints2/Hint_2.html               |  14 +-
 src/lab/exp1/Hints2/Hint_3.html               |  16 +-
 src/lab/exp1/Hints2/Hint_4.html               |  12 +-
 src/lab/exp1/Introduction.html                | 192 +++---
 src/lab/exp1/Theory.html                      | 208 ++++---
 src/lab/exp1/bk_lab.html                      | 577 +++++++++--------
 src/lab/exp1/bkcontent.html                   |  91 ++-
 src/lab/exp1/bkindex.html                     | 186 +++---
 src/lab/exp1/content1.html                    |  18 +-
 src/lab/exp1/content1_1.html                  |  10 +-
 src/lab/exp1/content1_2.html                  |  11 +-
 src/lab/exp1/content1_3.html                  |   9 +-
 src/lab/exp1/content2.html                    |  19 +-
 src/lab/exp1/content2_1.html                  |  10 +-
 src/lab/exp1/content3.html                    |  21 +-
 src/lab/exp1/content3_1.html                  |  23 +-
 src/lab/exp1/content_template.html            |  45 +-
 src/lab/exp1/default.html                     | 233 ++++---
 .../exp1/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp1/furtherReadings.html             | 172 +++--
 src/lab/exp1/indexmar.html                    |  73 +--
 src/lab/exp1/lab.html                         | 581 +++++++++--------
 src/lab/exp1/lab_test.html                    | 299 +++++----
 src/lab/exp1/newindex.html                    |  71 +--
 src/lab/exp1/objective.html                   | 114 ++--
 src/lab/exp1/previndex.html                   | 186 +++---
 src/lab/exp1/prevlab.html                     | 577 +++++++++--------
 src/lab/exp1/prob_desc.html                   | 132 ++--
 src/lab/exp1/quiz.html                        | 172 +++--
 src/lab/exp1/realcontent.html                 |  93 ++-
 src/lab/exp1/submission040361394.html         |  87 ++-
 src/lab/exp1/submission082188330.html         |  88 ++-
 src/lab/exp1/submission082365658.html         |  87 ++-
 src/lab/exp1/submission100779049.html         |  89 ++-
 src/lab/exp1/submission111383690.html         |  88 ++-
 src/lab/exp1/submission155196644.html         |  87 ++-
 src/lab/exp1/submission192297025.html         |  96 ++-
 src/lab/exp1/submission246138070.html         |  88 ++-
 src/lab/exp1/submission261786162.html         |  92 ++-
 src/lab/exp1/submission293575265.html         |  88 ++-
 src/lab/exp1/submission341502595.html         |  86 ++-
 src/lab/exp1/submission374353207.html         |  94 ++-
 src/lab/exp1/submission394922362.html         |  87 ++-
 src/lab/exp1/submission398367358.html         |  96 ++-
 src/lab/exp1/submission447675640.html         |  88 ++-
 src/lab/exp1/submission451578265.html         |  94 ++-
 src/lab/exp1/submission465083441.html         |  88 ++-
 src/lab/exp1/submission535736206.html         |  94 ++-
 src/lab/exp1/submission612317503.html         |  87 ++-
 src/lab/exp1/submission851076195.html         |  86 ++-
 src/lab/exp1/submission932738197.html         |  87 ++-
 src/lab/exp1/submission958166466.html         |  88 ++-
 src/lab/exp1/test.html                        | 395 ++++++------
 src/lab/exp1/theory.html                      |  58 +-
 src/lab/exp10/Hints1/Hint_0.html              |   8 +-
 src/lab/exp10/Hints1/Hint_1.html              |  18 +-
 src/lab/exp10/Hints1/Hint_2.html              |  24 +-
 src/lab/exp10/Hints1/Hint_3.html              |  18 +-
 src/lab/exp10/Hints1/Hint_4.html              |  12 +-
 src/lab/exp10/Hints2/Hint_0.html              |   8 +-
 src/lab/exp10/Hints2/Hint_1.html              |  16 +-
 src/lab/exp10/Hints2/Hint_2.html              |  20 +-
 src/lab/exp10/Hints2/Hint_3.html              |  14 +-
 src/lab/exp10/Hints2/Hint_4.html              |  10 +-
 src/lab/exp10/Theory.html                     | 179 +++---
 src/lab/exp10/content1.html                   |  18 +-
 src/lab/exp10/content1_1.html                 |  10 +-
 src/lab/exp10/content1_2.html                 |  11 +-
 src/lab/exp10/content1_3.html                 |   9 +-
 src/lab/exp10/content2.html                   |  19 +-
 src/lab/exp10/content2_1.html                 |  10 +-
 src/lab/exp10/content3.html                   |  21 +-
 src/lab/exp10/content3_1.html                 |  23 +-
 src/lab/exp10/content4.html                   |   9 +-
 src/lab/exp10/content5.html                   |  40 +-
 src/lab/exp10/content5_1.html                 |  26 +-
 src/lab/exp10/content5_2.html                 |   8 +-
 src/lab/exp10/content5_3.html                 |  22 +-
 src/lab/exp10/default.html                    | 233 ++++---
 .../edit_area/plugins/charmap/popup.html      |  51 +-
 src/lab/exp10/lab.html                        | 585 +++++++++---------
 src/lab/exp10/lab_test.html                   | 299 +++++----
 src/lab/exp10/prob_desc.html                  | 118 ++--
 src/lab/exp10/quiz.html                       | 172 +++--
 src/lab/exp10/test.html                       | 395 ++++++------
 src/lab/exp10/theory.html                     |  52 +-
 src/lab/exp2/Hints1/Hint_0.html               |   7 +-
 src/lab/exp2/Hints1/Hint_1.html               |  16 +-
 src/lab/exp2/Hints1/Hint_2.html               |  16 +-
 src/lab/exp2/Hints1/Hint_3.html               |  18 +-
 src/lab/exp2/Hints1/Hint_4.html               |  10 +-
 src/lab/exp2/Hints1/Hint_5.html               |  10 +-
 src/lab/exp2/Hints2/Hint_0.html               |   8 +-
 src/lab/exp2/Hints2/Hint_1.html               |  14 +-
 src/lab/exp2/Hints2/Hint_2.html               |  14 +-
 src/lab/exp2/Hints2/Hint_3.html               |  14 +-
 src/lab/exp2/Hints2/Hint_4.html               |  10 +-
 src/lab/exp2/Hints2/Hint_5.html               |  10 +-
 src/lab/exp2/bk_index.html                    | 194 +++---
 src/lab/exp2/content1.html                    |  20 +-
 src/lab/exp2/content1_1.html                  |  10 +-
 src/lab/exp2/content1_2.html                  |  11 +-
 src/lab/exp2/content1_3.html                  |   9 +-
 src/lab/exp2/content2.html                    |  19 +-
 src/lab/exp2/content2_1.html                  |  10 +-
 src/lab/exp2/content3.html                    |  21 +-
 src/lab/exp2/content3_1.html                  |  23 +-
 src/lab/exp2/content4.html                    |   9 +-
 src/lab/exp2/content5.html                    |  40 +-
 src/lab/exp2/content5_1.html                  |  26 +-
 src/lab/exp2/content5_2.html                  |   8 +-
 src/lab/exp2/content5_3.html                  |  22 +-
 src/lab/exp2/default.html                     | 233 ++++---
 .../exp2/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp2/furtherReadings.html             | 172 +++--
 src/lab/exp2/lab.html                         | 585 +++++++++---------
 src/lab/exp2/lab_test.html                    | 299 +++++----
 src/lab/exp2/previndex.html                   | 194 +++---
 src/lab/exp2/prob_desc.html                   | 124 ++--
 src/lab/exp2/quiz.html                        | 172 +++--
 src/lab/exp3/Hints1/Hint_0.html               |   8 +-
 src/lab/exp3/Hints1/Hint_1.html               |  14 +-
 src/lab/exp3/Hints1/Hint_2.html               |  14 +-
 src/lab/exp3/Hints1/Hint_3.html               |  16 +-
 src/lab/exp3/Hints1/Hint_4.html               |  10 +-
 src/lab/exp3/Hints2/Hint_0.html               |   8 +-
 src/lab/exp3/Hints2/Hint_1.html               |  18 +-
 src/lab/exp3/Hints2/Hint_2.html               |  18 +-
 src/lab/exp3/Hints2/Hint_3.html               |  18 +-
 src/lab/exp3/Hints2/Hint_4.html               |  12 +-
 src/lab/exp3/Hints2/Hint_5.html               |  12 +-
 src/lab/exp3/Theory.html                      | 277 +++++----
 src/lab/exp3/content1.html                    |  20 +-
 src/lab/exp3/content1_1.html                  |  10 +-
 src/lab/exp3/content1_2.html                  |  11 +-
 src/lab/exp3/content1_3.html                  |   9 +-
 src/lab/exp3/content2.html                    |  20 +-
 src/lab/exp3/content2_1.html                  |  10 +-
 src/lab/exp3/content3.html                    |  21 +-
 src/lab/exp3/content3_1.html                  |  23 +-
 src/lab/exp3/content4.html                    |   9 +-
 src/lab/exp3/content5.html                    |  40 +-
 src/lab/exp3/content5_1.html                  |  26 +-
 src/lab/exp3/content5_2.html                  |   8 +-
 src/lab/exp3/content5_3.html                  |  22 +-
 src/lab/exp3/default.html                     | 233 ++++---
 .../exp3/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp3/lab.html                         | 585 +++++++++---------
 src/lab/exp3/lab_test.html                    | 299 +++++----
 src/lab/exp3/prob_desc.html                   | 141 +++--
 src/lab/exp3/quiz.html                        | 172 +++--
 src/lab/exp3/test.html                        | 395 ++++++------
 src/lab/exp3/theory.html                      |  50 +-
 src/lab/exp4/Hints1/Hint_1.html               |  16 +-
 src/lab/exp4/Hints1/Hint_2.html               |  16 +-
 src/lab/exp4/Hints1/Hint_3.html               |  18 +-
 src/lab/exp4/Hints1/Hint_4.html               |  10 +-
 src/lab/exp4/Hints2/Hint_0.html               |   8 +-
 src/lab/exp4/Hints2/Hint_1.html               |  18 +-
 src/lab/exp4/Hints2/Hint_2.html               |  18 +-
 src/lab/exp4/Hints2/Hint_3.html               |  10 +-
 src/lab/exp4/Hints2/Hint_4.html               |  10 +-
 src/lab/exp4/Theory.html                      | 283 +++++----
 src/lab/exp4/content1.html                    |  18 +-
 src/lab/exp4/content1_1.html                  |  10 +-
 src/lab/exp4/content1_2.html                  |  11 +-
 src/lab/exp4/content1_3.html                  |   9 +-
 src/lab/exp4/content2.html                    |  18 +-
 src/lab/exp4/content2_1.html                  |  10 +-
 src/lab/exp4/content3.html                    |  21 +-
 src/lab/exp4/content3_1.html                  |  23 +-
 src/lab/exp4/content4.html                    |   9 +-
 src/lab/exp4/content5.html                    |  40 +-
 src/lab/exp4/content5_1.html                  |  26 +-
 src/lab/exp4/content5_2.html                  |   8 +-
 src/lab/exp4/content5_3.html                  |  22 +-
 src/lab/exp4/default.html                     | 233 ++++---
 .../exp4/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp4/lab.html                         | 585 +++++++++---------
 src/lab/exp4/lab_test.html                    | 299 +++++----
 src/lab/exp4/prob_desc.html                   |  94 ++-
 src/lab/exp4/quiz.html                        | 172 +++--
 src/lab/exp4/test.html                        | 395 ++++++------
 src/lab/exp4/theory.html                      |  74 ++-
 src/lab/exp5/Hints1/Hint_0.html               |   8 +-
 src/lab/exp5/Hints1/Hint_1.html               |  16 +-
 src/lab/exp5/Hints1/Hint_2.html               |  14 +-
 src/lab/exp5/Hints1/Hint_3.html               |  12 +-
 src/lab/exp5/Hints1/Hint_4.html               |  14 +-
 src/lab/exp5/Hints2/Hint_0.html               |   8 +-
 src/lab/exp5/Hints2/Hint_1.html               |  16 +-
 src/lab/exp5/Hints2/Hint_2.html               |  18 +-
 src/lab/exp5/Hints2/Hint_3.html               |  18 +-
 src/lab/exp5/Hints2/Hint_4.html               |  10 +-
 src/lab/exp5/Theory.html                      | 210 ++++---
 src/lab/exp5/content1.html                    |  18 +-
 src/lab/exp5/content1_1.html                  |  10 +-
 src/lab/exp5/content1_2.html                  |  11 +-
 src/lab/exp5/content1_3.html                  |   9 +-
 src/lab/exp5/content2.html                    |  19 +-
 src/lab/exp5/content2_1.html                  |  10 +-
 src/lab/exp5/content3.html                    |  21 +-
 src/lab/exp5/content3_1.html                  |  23 +-
 src/lab/exp5/content4.html                    |   9 +-
 src/lab/exp5/content5.html                    |  40 +-
 src/lab/exp5/content5_1.html                  |  26 +-
 src/lab/exp5/content5_2.html                  |   8 +-
 src/lab/exp5/content5_3.html                  |  22 +-
 src/lab/exp5/default.html                     | 233 ++++---
 .../exp5/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp5/lab.html                         | 583 +++++++++--------
 src/lab/exp5/lab_test.html                    | 299 +++++----
 src/lab/exp5/prob_desc.html                   | 118 ++--
 src/lab/exp5/quiz.html                        | 172 +++--
 src/lab/exp5/test.html                        | 395 ++++++------
 src/lab/exp5/theory.html                      |  58 +-
 src/lab/exp6/Hints1/Hint_0.html               |   8 +-
 src/lab/exp6/Hints1/Hint_1.html               |  18 +-
 src/lab/exp6/Hints1/Hint_2.html               |  18 +-
 src/lab/exp6/Hints1/Hint_3.html               |  18 +-
 src/lab/exp6/Hints1/Hint_4.html               |  10 +-
 src/lab/exp6/Hints1/Hint_5.html               |  10 +-
 src/lab/exp6/Hints2/Hint_0.html               |   8 +-
 src/lab/exp6/Hints2/Hint_1.html               |  14 +-
 src/lab/exp6/Hints2/Hint_2.html               |  22 +-
 src/lab/exp6/Hints2/Hint_3.html               |  14 +-
 src/lab/exp6/Hints2/Hint_4.html               |  12 +-
 src/lab/exp6/Hints2/Hint_5.html               |  12 +-
 src/lab/exp6/Theory.html                      | 207 ++++---
 src/lab/exp6/content1.html                    |  18 +-
 src/lab/exp6/content1_1.html                  |  10 +-
 src/lab/exp6/content1_2.html                  |  11 +-
 src/lab/exp6/content1_3.html                  |   9 +-
 src/lab/exp6/content2.html                    |  19 +-
 src/lab/exp6/content2_1.html                  |  10 +-
 src/lab/exp6/content3.html                    |  21 +-
 src/lab/exp6/content3_1.html                  |  23 +-
 src/lab/exp6/content4.html                    |   9 +-
 src/lab/exp6/content5.html                    |  40 +-
 src/lab/exp6/content5_1.html                  |  26 +-
 src/lab/exp6/content5_2.html                  |   8 +-
 src/lab/exp6/content5_3.html                  |  22 +-
 src/lab/exp6/default.html                     | 233 ++++---
 .../exp6/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp6/lab.html                         | 581 +++++++++--------
 src/lab/exp6/lab_test.html                    | 299 +++++----
 src/lab/exp6/prob_desc.html                   | 126 ++--
 src/lab/exp6/quiz.html                        | 172 +++--
 src/lab/exp6/test.html                        | 395 ++++++------
 src/lab/exp6/theory.html                      |  50 +-
 src/lab/exp7/Hints1/Hint_0.html               |   8 +-
 src/lab/exp7/Hints1/Hint_1.html               |  14 +-
 src/lab/exp7/Hints1/Hint_2.html               |  22 +-
 src/lab/exp7/Hints1/Hint_3.html               |  22 +-
 src/lab/exp7/Hints1/Hint_4.html               |  70 +--
 src/lab/exp7/Hints2/Hint_0.html               |   8 +-
 src/lab/exp7/Hints2/Hint_1.html               |  14 +-
 src/lab/exp7/Hints2/Hint_2.html               |  14 +-
 src/lab/exp7/Hints2/Hint_3.html               |  10 +-
 src/lab/exp7/Hints2/Hint_4.html               |  10 +-
 src/lab/exp7/Theory.html                      | 187 +++---
 src/lab/exp7/content1.html                    |  18 +-
 src/lab/exp7/content1_1.html                  |  10 +-
 src/lab/exp7/content1_2.html                  |  11 +-
 src/lab/exp7/content1_3.html                  |   9 +-
 src/lab/exp7/content2.html                    |  19 +-
 src/lab/exp7/content2_1.html                  |  10 +-
 src/lab/exp7/content3.html                    |  21 +-
 src/lab/exp7/content3_1.html                  |  23 +-
 src/lab/exp7/content4.html                    |   9 +-
 src/lab/exp7/content5.html                    |  40 +-
 src/lab/exp7/content5_1.html                  |  26 +-
 src/lab/exp7/content5_2.html                  |   8 +-
 src/lab/exp7/content5_3.html                  |  22 +-
 src/lab/exp7/default.html                     | 233 ++++---
 .../exp7/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp7/lab.html                         | 583 +++++++++--------
 src/lab/exp7/lab_test.html                    | 299 +++++----
 src/lab/exp7/prob_desc.html                   |  98 ++-
 src/lab/exp7/quiz.html                        | 172 +++--
 src/lab/exp7/test.html                        | 395 ++++++------
 src/lab/exp7/theory.html                      |  52 +-
 src/lab/exp8/Hints1/Hint_0.html               |   8 +-
 src/lab/exp8/Hints1/Hint_1.html               |  18 +-
 src/lab/exp8/Hints1/Hint_2.html               |  18 +-
 src/lab/exp8/Hints1/Hint_3.html               |  20 +-
 src/lab/exp8/Hints1/Hint_4.html               |  66 +-
 src/lab/exp8/Hints2/Hint_0.html               |   8 +-
 src/lab/exp8/Hints2/Hint_1.html               |  18 +-
 src/lab/exp8/Hints2/Hint_2.html               |  16 +-
 src/lab/exp8/Hints2/Hint_3.html               |  16 +-
 src/lab/exp8/Hints2/Hint_4.html               | 104 ++--
 src/lab/exp8/Theory.html                      | 177 +++---
 src/lab/exp8/content1.html                    |  18 +-
 src/lab/exp8/content1_1.html                  |  10 +-
 src/lab/exp8/content1_2.html                  |  11 +-
 src/lab/exp8/content1_3.html                  |   9 +-
 src/lab/exp8/content2.html                    |  19 +-
 src/lab/exp8/content2_1.html                  |  10 +-
 src/lab/exp8/content3.html                    |  21 +-
 src/lab/exp8/content3_1.html                  |  23 +-
 src/lab/exp8/content4.html                    |   9 +-
 src/lab/exp8/content5.html                    |  40 +-
 src/lab/exp8/content5_1.html                  |  26 +-
 src/lab/exp8/content5_2.html                  |   8 +-
 src/lab/exp8/content5_3.html                  |  22 +-
 src/lab/exp8/default.html                     | 233 ++++---
 .../exp8/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp8/lab.html                         | 583 +++++++++--------
 src/lab/exp8/lab_test.html                    | 299 +++++----
 src/lab/exp8/prob_desc.html                   | 140 ++---
 src/lab/exp8/quiz.html                        | 172 +++--
 src/lab/exp8/test.html                        | 395 ++++++------
 src/lab/exp8/theory.html                      |  53 +-
 src/lab/exp9/Hints1/Hint_0.html               |   5 -
 src/lab/exp9/Hints1/Hint_1.html               |  22 +-
 src/lab/exp9/Hints1/Hint_2.html               |  24 +-
 src/lab/exp9/Hints1/Hint_3.html               |  14 +-
 src/lab/exp9/Hints1/Hint_4.html               |  12 +-
 src/lab/exp9/Hints2/Hint_0.html               |   8 +-
 src/lab/exp9/Hints2/Hint_1.html               |  12 +-
 src/lab/exp9/Hints2/Hint_2.html               |  16 +-
 src/lab/exp9/Hints2/Hint_3.html               |  22 +-
 src/lab/exp9/Hints2/Hint_4.html               |  10 +-
 src/lab/exp9/Theory.html                      | 193 +++---
 src/lab/exp9/content1.html                    |  18 +-
 src/lab/exp9/content1_1.html                  |  10 +-
 src/lab/exp9/content1_2.html                  |  11 +-
 src/lab/exp9/content1_3.html                  |   9 +-
 src/lab/exp9/content2.html                    |  19 +-
 src/lab/exp9/content2_1.html                  |  10 +-
 src/lab/exp9/content3.html                    |  21 +-
 src/lab/exp9/content3_1.html                  |  23 +-
 src/lab/exp9/content4.html                    |   9 +-
 src/lab/exp9/content5.html                    |  40 +-
 src/lab/exp9/content5_1.html                  |  26 +-
 src/lab/exp9/content5_2.html                  |   8 +-
 src/lab/exp9/content5_3.html                  |  22 +-
 src/lab/exp9/content_template.html            |  43 +-
 src/lab/exp9/default.html                     | 233 ++++---
 .../exp9/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp9/lab.html                         | 583 +++++++++--------
 src/lab/exp9/lab_test.html                    | 299 +++++----
 src/lab/exp9/prob_desc.html                   | 118 ++--
 src/lab/exp9/quiz.html                        | 172 +++--
 src/lab/exp9/test.html                        | 395 ++++++------
 src/lab/exp9/theory.html                      |  52 +-
 src/lab/expPh1/contenttempplate.html          | 200 +++---
 src/lab/expPh1/default.html                   | 233 ++++---
 src/lab/expPh1/newcontenttempalte.html        | 219 +++----
 src/lab/exp_template.php                      |   2 -
 358 files changed, 14333 insertions(+), 15615 deletions(-)

diff --git a/src/lab/exp1/Hints1/Hint_0.html b/src/lab/exp1/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp1/Hints1/Hint_0.html
+++ b/src/lab/exp1/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp1/Hints1/Hint_1.html b/src/lab/exp1/Hints1/Hint_1.html
index de133ea0..87838f15 100755
--- a/src/lab/exp1/Hints1/Hint_1.html
+++ b/src/lab/exp1/Hints1/Hint_1.html
@@ -1,17 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
--&gt;declare N, count
--&gt;scan N and make count 0
--&gt;count the bits using a while loop
--&gt;print count
+->declare N, count
+->scan N and make count 0
+->count the bits using a while loop
+->print count
 
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index 5b08db03..baf2450d 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
@@ -1,18 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
--&gt;declare N, count
--&gt;scan N and make count 0
--&gt;Use right shift operator and while
+->declare N, count
+->scan N and make count 0
+->Use right shift operator and while
   loop for find the number of bits
--&gt;print count
+->print count
 
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 85ba18f4..24856ee8 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
+++ b/src/lab/exp1/Hints1/Hint_3.html
@@ -1,20 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
--&gt;declare N, count
--&gt;scan N and make count 0
+->declare N, count
+->scan N and make count 0
 while(n){
-	n&gt;&gt;=1;
+	n>>=1;
 	count++;
 }
--&gt;print count
+->print count
 
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index 8d32d2cc..742a9713 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
+++ b/src/lab/exp1/Hints1/Hint_4.html
@@ -1,15 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -17,4 +13,3 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 1f715ad7..7786ca51 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -1,14 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
 
--&gt;scan the input 
--&gt;scan the input string, whose rank 
+->scan the input 
+->scan the input string, whose rank 
   we need to find out
--&gt;Add the number of  strings 
+->Add the number of  strings 
   we surpass when we move from 
   i<sup>th</sup> character to  i+1<sup>th</sup> character of 
   input string
@@ -16,4 +13,3 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index 9f7f26bf..5eb3994c 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -1,15 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
 
--&gt;scan the input 
--&gt;scan the input string, whose rank 
+->scan the input 
+->scan the input string, whose rank 
   we need to find out
 
--&gt;for i=0 to lengt;h of inputString
+->for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -19,4 +16,3 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index afea4148..11f66d3e 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -1,20 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
 
--&gt;scan the input 
--&gt;scan the input string, whose rank 
+->scan the input 
+->scan the input string, whose rank 
   we need to find out
 
--&gt; Number of strings starting with 
+-> Number of strings starting with 
    ordering[j] is given by 2^j , store 
    them in an array or calculate on the fly
    using left shift operator
 
--&gt;for i=0 to lengt;h of inputString
+->for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -24,4 +21,3 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index 09a9de71..46e7bc40 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -1,16 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -34,4 +31,3 @@
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 55080f74..66dfc0cc 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -1,35 +1,33 @@
+
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<html lang="en">
+<head>
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +35,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +49,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +57,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,44 +80,45 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
-<br/>
+<br>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br/><r>
+<br><r/>
  <p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br/><hr/>
+<br><hr/>
 <p><b>Output Specification</b></p><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
+<br><hr/>
 <p><b>Sample Input and Output</b></p><br/>
 <p>
 Input: 4<br/>
@@ -128,24 +127,24 @@ <h2>Problem 1:</h2>
 Output: 5<br/>
 </p>
 <p align="right"></p>
-<br/><hr/>
+<br><hr/>
 
 <h2>Problem 2:</h2>
 <p> 
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
+<br><hr/>
 <p><b>Input Specification</b></p><br/>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>
+<br><hr/>
 <p><b>Output Specification</b></p><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
+<br><hr/>
 <p><b>Sample Input and Output</b></p><br/>
 <p>
 Input: 3 A B C AC <br/>
@@ -154,8 +153,8 @@ <h2>Problem 2:</h2>
 Output: 6<br/>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/>  </r></div>						</div>
+<br><hr/>
+</br></br>  </div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -165,56 +164,68 @@ <h2>Problem 2:</h2>
 			
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+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
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+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
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+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
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@@ -265,7 +276,4 @@ <h4>Follow Us</h4>
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\ No newline at end of file
+</html>
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index d26e606c..f7b4cdf4 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -1,35 +1,32 @@
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+<body id="page-top" class="index">
 <div id="top">
 	<header>
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@@ -37,13 +34,13 @@
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-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
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 			                    <span class="sr-only">Toggle navigation</span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
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@@ -51,7 +48,7 @@
 			               
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 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
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@@ -59,16 +56,16 @@
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 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
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-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
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+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
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@@ -82,59 +79,61 @@
 	</header>
 
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-			<div class="container-fluid">
+			<div class="container-fluid" >
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
 etc.
-<br/><br/>
+<br><br>
 
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
-<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
+</br>
 </p>
 
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 Lets start with an example. Consider the sample input, the given characters are A,B,C and the input string is AC. Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B, right?
 Thus, the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC. But luckily we have initial letter as A. Now the 1<sup>st</sup> character is 'C' , thus we need to count all the strings which start with AB. If instead of 'C' there was a D, then we would have to count the number of strings starting with AB, AC. In this manner we proceed adding the requisite number of strings to our result.
 </p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
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@@ -144,56 +143,68 @@ <h2>Problem 2</h2>
 			
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+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
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@@ -244,7 +255,4 @@ <h4>Follow Us</h4>
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+</html>
diff --git a/src/lab/exp1/bk_lab.html b/src/lab/exp1/bk_lab.html
index 039626e1..5fbc518f 100755
--- a/src/lab/exp1/bk_lab.html
+++ b/src/lab/exp1/bk_lab.html
@@ -1,290 +1,287 @@
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
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-	
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-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp1/bkcontent.html b/src/lab/exp1/bkcontent.html
index 81c91e0e..3e171776 100755
--- a/src/lab/exp1/bkcontent.html
+++ b/src/lab/exp1/bkcontent.html
@@ -1,10 +1,6 @@
 <!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<head></head>
+<h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -16,80 +12,80 @@ <h2>Introduction </h2>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number.
+Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number.
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
-Input contains a single positive integer(&lt; 10<sup>6</sup>).
+Input contains a single positive integer(&lt 10<sup>6</sup>).
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr />
+<b>Output Specification</b><br />
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 4<br/>
-Output:3<br/>
-Input: 16 <br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+Input: 4<br />
+Output:3<br />
+Input: 16 <br />
 Output: 5<br/>
-<br/><hr/>
-<br/>
+<br><hr />
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
-Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr />						
+<b>Output Specification</b><br />
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 3 A B C AC <br/>
-Output: 4<br/>
-Input: 3 A B C BC<br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+Input: 3 A B C AC <br />
+Output: 4<br />
+Input: 3 A B C BC<br />
 Output: 6<br/>
-<br/><hr/>
+<br><hr />
 </li>
-</ol></div> 
+</div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
-etc.<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
+etc.<br>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
 </p>       
 
-<br/>
+<br>
 
 <h3>Problem 2</h3>
 <p>
@@ -111,4 +107,3 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bkindex.html b/src/lab/exp1/bkindex.html
index d8a3150a..a79598bf 100755
--- a/src/lab/exp1/bkindex.html
+++ b/src/lab/exp1/bkindex.html
@@ -1,95 +1,91 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 4<br/>
-						Output:3<br/>
-						Input: 16 <br/>
-						Output: 5<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 4<br />
+						Output:3<br />
+						Input: 16 <br />
+						Output: 5<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
+			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+			Output must be the index of the word in the dictionary.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 3 A B C AC <br />
+						Output: 4<br />
+						Input: 3 A B C BC<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp1/content1.html b/src/lab/exp1/content1.html
index 17b8e0b9..b3e2a660 100755
--- a/src/lab/exp1/content1.html
+++ b/src/lab/exp1/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> Numerical Representation </h1>
 
 <p>Please insert your code here</p> -->
 
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1_1.html b/src/lab/exp1/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp1/content1_1.html
+++ b/src/lab/exp1/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp1/content1_2.html b/src/lab/exp1/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp1/content1_2.html
+++ b/src/lab/exp1/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content1_3.html b/src/lab/exp1/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp1/content1_3.html
+++ b/src/lab/exp1/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content2.html b/src/lab/exp1/content2.html
index 51cda900..00c1917f 100755
--- a/src/lab/exp1/content2.html
+++ b/src/lab/exp1/content2.html
@@ -1,13 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content2_1.html b/src/lab/exp1/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp1/content2_1.html
+++ b/src/lab/exp1/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content3.html b/src/lab/exp1/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp1/content3.html
+++ b/src/lab/exp1/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content3_1.html b/src/lab/exp1/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp1/content3_1.html
+++ b/src/lab/exp1/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/content_template.html b/src/lab/exp1/content_template.html
index d171e982..93ea877e 100755
--- a/src/lab/exp1/content_template.html
+++ b/src/lab/exp1/content_template.html
@@ -1,10 +1,6 @@
 <!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<head></head>
+<h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -12,42 +8,42 @@
 <h2>Introduction </h2> 
 <p> 
 </p>
-<br/>
+<br>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr />
+<b>Output Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-<br/><hr/>
-<br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+<br><hr />
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr />						
+<b>Output Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-<br/><hr/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+<br><hr />
 </li>
-</ol></div> 
+</div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
@@ -55,7 +51,7 @@ <h2>Problem 1</h2>
 <p>
 </p>
 
-<br/>
+<br>
 
 <h2>Problem 2</h2>
 <p>
@@ -75,4 +71,3 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/default.html b/src/lab/exp1/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp1/default.html
+++ b/src/lab/exp1/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp1/edit_area/plugins/charmap/popup.html b/src/lab/exp1/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp1/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp1/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp1/furtherReadings.html b/src/lab/exp1/furtherReadings.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp1/furtherReadings.html
+++ b/src/lab/exp1/furtherReadings.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp1/indexmar.html b/src/lab/exp1/indexmar.html
index 42351293..454bc4d0 100755
--- a/src/lab/exp1/indexmar.html
+++ b/src/lab/exp1/indexmar.html
@@ -1,19 +1,16 @@
-<!DOCTYPE html>
-<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
+<!DOCTYPE html> 
+<html lang="eng">
+<head>
+	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
 	<title> Virtual Labs | Experiments </title>
 
-	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
-	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/> 
+	<link href="default.css" rel="stylesheet" type="text/css" media="screen" />
+	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
+	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
+	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
+	<link href="../css/prettify.css" type="text/css" rel="stylesheet" /> 
 
-	<script src="../colorjs/prettify.js" type="text/javascript"></script> 
+	<script type="text/javascript" src="../colorjs/prettify.js"></script> 
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -45,7 +42,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
         <header id="site_head">
                 <div class="header_cont"> <!-- 960px header-->
                         <!-- LOGO of the company-->
@@ -78,48 +75,8 @@ <h1> <a href="http://virtual-labs.ac.in"> Virtual Labs </a> </h1>
 			
 		</aside>
 
-		<footer class="bottom" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+		<footer class="bottom">
+		</footer>
+</body>
+</html>
 
-
-
-</article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/lab.html b/src/lab/exp1/lab.html
index 4a7fdc64..7dd8b6ba 100755
--- a/src/lab/exp1/lab.html
+++ b/src/lab/exp1/lab.html
@@ -1,292 +1,289 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
- 
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Numerical Representation </h1>
+			</div>
+
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/>
+<br>
+
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+ 
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp1/lab_test.html b/src/lab/exp1/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp1/lab_test.html
+++ b/src/lab/exp1/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp1/newindex.html b/src/lab/exp1/newindex.html
index ab432777..8af97fcc 100755
--- a/src/lab/exp1/newindex.html
+++ b/src/lab/exp1/newindex.html
@@ -1,17 +1,14 @@
-<!DOCTYPE html>
-<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
+<!DOCTYPE html> 
+<html lang="eng">
+<head>
+	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
 	<title> Virtual Labs | Programming Lab 2 </title>
 
-	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
-	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
-	<script src="../colorjs/prettify.js" type="text/javascript"></script>
+	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
+	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
+	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
+	<link href="../css/prettify.css" type="text/css" rel="stylesheet" />
+	<script type="text/javascript" src="../colorjs/prettify.js"></script>
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -43,7 +40,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 	<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -76,48 +73,8 @@ <h1>Experiment 1</h1>
 			
 		</aside>
 
-		<footer class="bottom" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
+		<footer class="bottom">
+		</footer>
 	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
-	
-
-
-</article></body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp1/objective.html b/src/lab/exp1/objective.html
index 5cca27b8..90cec68f 100755
--- a/src/lab/exp1/objective.html
+++ b/src/lab/exp1/objective.html
@@ -1,59 +1,55 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p></p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	<p></p> 	
-				</ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	</p> 	
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp1/previndex.html b/src/lab/exp1/previndex.html
index 92b17533..837c1b0d 100755
--- a/src/lab/exp1/previndex.html
+++ b/src/lab/exp1/previndex.html
@@ -1,95 +1,91 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 4<br/>
-						Output:3<br/>
-						Input: 16 <br/>
-						Output: 5<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 4<br />
+						Output:3<br />
+						Input: 16 <br />
+						Output: 5<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
+			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+			Output must be the index of the word in the dictionary.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 3 A B C AC <br />
+						Output: 4<br />
+						Input: 3 A B C BC<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp1/prevlab.html b/src/lab/exp1/prevlab.html
index ffe0edd8..e5cd3d36 100755
--- a/src/lab/exp1/prevlab.html
+++ b/src/lab/exp1/prevlab.html
@@ -1,290 +1,287 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp1/prob_desc.html b/src/lab/exp1/prob_desc.html
index 1ee1f233..14a7e4ac 100755
--- a/src/lab/exp1/prob_desc.html
+++ b/src/lab/exp1/prob_desc.html
@@ -1,68 +1,64 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>Experiment 1</title>
-        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-        <link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
-        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
-        <script src="../colorjs/prettify.js" type="text/javascript"></script>
-	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-	<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-	<div id="content">
-	<ol>
-	<li> 
-        <h2>Problem 1:</h2>
-	Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number
-						<br/><br/><hr/>
-	<b>Input Specification</b><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-	<b>Output Specification</b><br/>
-	Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-	<b>Sample Input and Output</b><br/>
-	Input: 4<br/>
-	Output: 3<br/>
-	Input: 16 <br/>
-	Output: 5<br/>
-	<hr/>
-	</li>
-	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-	<li><h2>Problem 2:</h2>
-<p>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-</p>
-						<br/><br/><hr/>
-<b>Input Specification</b><br/>
-Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br/><br/><hr/>
-<b>Output Specification</b><br/>
-			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<b>Sample Input and Output</b><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						</li>
-				</ol></div>
-			<div id="footer">
-			</div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+	<title>Experiment 1</title>
+        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
+        <link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
+        <script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
+        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
+        <script type="text/javascript" src="../colorjs/prettify.js"></script>
+	<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+	<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+	<div id="content">
+	<ol>
+	<li> 
+        <h2>Problem 1:</h2>
+	Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number
+						<br /><br /><hr />
+	<b>Input Specification</b><br />
+	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
+	<b>Output Specification</b><br />
+	Output the minimum number of bits required for the representing in binary <br /><br /><hr />
+	<b>Sample Input and Output</b><br />
+	Input: 4<br />
+	Output: 3<br />
+	Input: 16 <br />
+	Output: 5<br/>
+	<hr />
+	</li>
+	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+	<li><h2>Problem 2:</h2>
+<p>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+</p>
+						<br /><br /><hr />
+<b>Input Specification</b><br/>
+Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
+in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br /><br /><hr />
+<b>Output Specification</b><br />
+			Output must be the index of the word in the dictionary.
+				<br /><br /><hr />
+						<b>Sample Input and Output</b><br />
+						Input: 3 A B C AC <br />
+						Output: 4<br />
+						Input: 3 A B C BC<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						</li>
+				</div>
+			<div id="footer">
+			</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp1/quiz.html b/src/lab/exp1/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp1/quiz.html
+++ b/src/lab/exp1/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp1/realcontent.html b/src/lab/exp1/realcontent.html
index 8d98719e..a3aac2e9 100755
--- a/src/lab/exp1/realcontent.html
+++ b/src/lab/exp1/realcontent.html
@@ -1,10 +1,6 @@
 <!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<head></head>
+<h1 id="main-title">
 Numerical Representation
 </h1>
 
@@ -13,84 +9,84 @@ <h2>Introduction </h2>
 <p> 
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br/>
+<br>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
+Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
-Input contains a single positive integer(&lt; 10<sup>6</sup>).
+Input contains a single positive integer(&lt 10<sup>6</sup>).
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr />
+<b>Output Specification</b><br />
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 4<br/>
-Output:3<br/>
-Input: 16 <br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+Input: 4<br />
+Output:3<br />
+Input: 16 <br />
 Output: 5<br/>
-<br/><hr/>
-<br/>
+<br><hr />
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
-Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr />						
+<b>Output Specification</b><br />
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 3 A B C AC <br/>
-Output: 4<br/>
-Input: 3 A B C BC<br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+Input: 3 A B C AC <br />
+Output: 4<br />
+Input: 3 A B C BC<br />
 Output: 6<br/>
-<br/><hr/>
+<br><hr />
 </li>
-</ol></div> 
+</div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
-etc.<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
+etc.<br>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
 </p>       
 
-<br/>
+<br>
 
 <h2>Problem 2</h2>
 <p>
@@ -112,4 +108,3 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission040361394.html b/src/lab/exp1/submission040361394.html
index 92ac1f97..4b03c40f 100644
--- a/src/lab/exp1/submission040361394.html
+++ b/src/lab/exp1/submission040361394.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp; -->
 <!-- <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>)</span> -->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
 		 
-#include&lt;stdio.h&gt;
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,36 +234,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -273,9 +271,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -286,13 +284,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -305,11 +303,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082188330.html b/src/lab/exp1/submission082188330.html
index 66cd8178..2b5792a4 100644
--- a/src/lab/exp1/submission082188330.html
+++ b/src/lab/exp1/submission082188330.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-#include&lt;stdio.h&gt;
+	
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -237,34 +235,34 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -288,22 +286,23 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>1000000
 </td><td>20
 </td><td>20
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Passed </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -316,11 +315,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082365658.html b/src/lab/exp1/submission082365658.html
index 6d2cfc07..fc387f2d 100644
--- a/src/lab/exp1/submission082365658.html
+++ b/src/lab/exp1/submission082365658.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,36 +234,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -273,9 +271,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -286,13 +284,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -305,11 +303,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission100779049.html b/src/lab/exp1/submission100779049.html
index 6265321e..fad0fe22 100644
--- a/src/lab/exp1/submission100779049.html
+++ b/src/lab/exp1/submission100779049.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,11 +205,11 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
+<iframe id="upload_target" name ="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
 </form>
 </span>
 
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
 		 
-#include&lt;stdio.h&gt;
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,36 +234,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -273,9 +271,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -286,13 +284,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -305,11 +303,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission111383690.html b/src/lab/exp1/submission111383690.html
index a2b5078e..17e82f56 100644
--- a/src/lab/exp1/submission111383690.html
+++ b/src/lab/exp1/submission111383690.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -237,34 +235,34 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -273,22 +271,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -301,11 +300,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission155196644.html b/src/lab/exp1/submission155196644.html
index 2e52fa80..8d27602f 100644
--- a/src/lab/exp1/submission155196644.html
+++ b/src/lab/exp1/submission155196644.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,36 +233,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -272,9 +270,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -285,13 +283,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -304,11 +302,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission192297025.html b/src/lab/exp1/submission192297025.html
index 9b3b9464..345f6dc1 100644
--- a/src/lab/exp1/submission192297025.html
+++ b/src/lab/exp1/submission192297025.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,23 +217,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -252,47 +250,48 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -319,13 +318,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -338,11 +337,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission246138070.html b/src/lab/exp1/submission246138070.html
index b0d91ada..47887176 100644
--- a/src/lab/exp1/submission246138070.html
+++ b/src/lab/exp1/submission246138070.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,16 +217,17 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
 	
 		 
-#include&lt;stdio.h&gt;
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -237,34 +235,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -273,22 +271,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -301,11 +300,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission261786162.html b/src/lab/exp1/submission261786162.html
index 63b80d0c..af9803f6 100644
--- a/src/lab/exp1/submission261786162.html
+++ b/src/lab/exp1/submission261786162.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,25 +217,26 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -254,49 +252,50 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -309,11 +308,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission293575265.html b/src/lab/exp1/submission293575265.html
index 641c7d2e..5ac0b840 100644
--- a/src/lab/exp1/submission293575265.html
+++ b/src/lab/exp1/submission293575265.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,34 +234,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -272,22 +270,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -300,11 +299,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission341502595.html b/src/lab/exp1/submission341502595.html
index 9f3866f8..dc7b8926 100644
--- a/src/lab/exp1/submission341502595.html
+++ b/src/lab/exp1/submission341502595.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,49 +234,50 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -291,11 +290,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission374353207.html b/src/lab/exp1/submission374353207.html
index 1d33ff5a..bd0b9861 100644
--- a/src/lab/exp1/submission374353207.html
+++ b/src/lab/exp1/submission374353207.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,24 +217,25 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -253,34 +251,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,22 +299,23 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Passed </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -329,11 +328,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission394922362.html b/src/lab/exp1/submission394922362.html
index 2e52fa80..8d27602f 100644
--- a/src/lab/exp1/submission394922362.html
+++ b/src/lab/exp1/submission394922362.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,36 +233,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -272,9 +270,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -285,13 +283,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -304,11 +302,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission398367358.html b/src/lab/exp1/submission398367358.html
index 9b3b9464..345f6dc1 100644
--- a/src/lab/exp1/submission398367358.html
+++ b/src/lab/exp1/submission398367358.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,23 +217,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -252,47 +250,48 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -319,13 +318,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -338,11 +337,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission447675640.html b/src/lab/exp1/submission447675640.html
index 3ac2a206..5e8f3637 100644
--- a/src/lab/exp1/submission447675640.html
+++ b/src/lab/exp1/submission447675640.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,34 +234,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -272,22 +270,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>20
-</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Run Time Error </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -300,11 +299,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission451578265.html b/src/lab/exp1/submission451578265.html
index 1d33ff5a..bd0b9861 100644
--- a/src/lab/exp1/submission451578265.html
+++ b/src/lab/exp1/submission451578265.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,24 +217,25 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -253,34 +251,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,22 +299,23 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Passed </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -329,11 +328,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission465083441.html b/src/lab/exp1/submission465083441.html
index 641c7d2e..5ac0b840 100644
--- a/src/lab/exp1/submission465083441.html
+++ b/src/lab/exp1/submission465083441.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,15 +217,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,34 +234,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -272,22 +270,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -300,11 +299,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission535736206.html b/src/lab/exp1/submission535736206.html
index 7383252d..138e893e 100644
--- a/src/lab/exp1/submission535736206.html
+++ b/src/lab/exp1/submission535736206.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,26 +217,27 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
 	
 	
 	
-		#include&lt;stdio.h&gt;
+	
+		#include<stdio.h>
 main(){
 int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	char input_chars[N];
 	int i;
-	for(i=0;i&lt;N ;i++)
+	for(i=0;i<N ;i++)
 	{
-		scanf(" %c",&amp;input_chars[i]);
+		scanf(" %c",&input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
+	for(i=0,j=N-1;i<N ;i++,j--)
+	   addValue[i] = (1<<j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -255,34 +253,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="codeId" name="codeId">
+<select name="codeId" id="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option selected="selected" value="Problem2"> 2  </option>
+<option value="Problem2" selected="selected"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -303,22 +301,23 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Passed </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -331,11 +330,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission612317503.html b/src/lab/exp1/submission612317503.html
index 6d2cfc07..fc387f2d 100644
--- a/src/lab/exp1/submission612317503.html
+++ b/src/lab/exp1/submission612317503.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,36 +234,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -273,9 +271,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -286,13 +284,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -305,11 +303,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission851076195.html b/src/lab/exp1/submission851076195.html
index 9f3866f8..dc7b8926 100644
--- a/src/lab/exp1/submission851076195.html
+++ b/src/lab/exp1/submission851076195.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -236,49 +234,50 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -291,11 +290,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission932738197.html b/src/lab/exp1/submission932738197.html
index 2e52fa80..8d27602f 100644
--- a/src/lab/exp1/submission932738197.html
+++ b/src/lab/exp1/submission932738197.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,14 +217,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
+		#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,36 +233,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/></form></div> <!--contentLeft -->
+<br><br></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
 <pre> 
@@ -272,9 +270,9 @@ <h4> HINTS </h4><br/>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -285,13 +283,13 @@ <h4> HINTS </h4><br/>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 4
  </span></span>
@@ -304,11 +302,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission958166466.html b/src/lab/exp1/submission958166466.html
index b0d91ada..47887176 100644
--- a/src/lab/exp1/submission958166466.html
+++ b/src/lab/exp1/submission958166466.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -208,7 +205,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -220,16 +217,17 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
 	
 		 
-#include&lt;stdio.h&gt;
+#include<stdio.h>
 int main(){
 
 int N,count=0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 while(N){
-	N&gt;&gt;=1;
+	N>>=1;
 	count++;
 }
 printf("%d\n",count);
@@ -237,34 +235,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-<select id="codeId" name="language">
+<select name="language" id="codeId">
 
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
+<option value="c" selected="selected"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>                   
-    
+</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-<select id="probId" name="codeId">
+<select name="codeId" id="probId">
 
-<option selected="selected" value="Problem1"> 1  </option>
+<option value="Problem1" selected="selected"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
+<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -273,22 +271,23 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-<pre></pre>
+<pre>
+</pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
 0
  </span></span>
@@ -301,11 +300,10 @@ <h4> HINTS </h4><br/>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/test.html b/src/lab/exp1/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp1/test.html
+++ b/src/lab/exp1/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp1/theory.html b/src/lab/exp1/theory.html
index 760afe7b..efde3cb9 100755
--- a/src/lab/exp1/theory.html
+++ b/src/lab/exp1/theory.html
@@ -1,21 +1,18 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
 <!--		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/> -->
-	        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-       		<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
-	        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
-	        <script src="../colorjs/prettify.js" type="text/javascript"></script>
+	        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
+       		<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
+	        <script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
+	        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
+	        <script type="text/javascript" src="../colorjs/prettify.js"></script>
 
 <!--		<script src="jqminmax.js" type="text/javascript"></script> -->
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -41,11 +38,12 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre><p>
+        <p><h3>Problem 1</h3>
+<pre>
+<p>
         Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.
         n=1
         0,1
@@ -71,12 +69,13 @@ <h2>Theory</h2>
 
 
 </p>       
-<p></p>
+</p>
 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
 	Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. 
 	If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B right.
 	Thus the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC.
@@ -86,13 +85,12 @@ <h2>Theory</h2>
 	we proceed adding the requisite number of strings to our result.   
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index 59ac8d41..d9d10e89 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
--&gt;declare N and scan N
--&gt;declare an array of size of N 
+->declare N and scan N
+->declare an array of size of N 
   and scan it 
--&gt;declare variables to store the
+->declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
--&gt;Iterate over the array and update the 
+->Iterate over the array and update the 
   variables 
--&gt; print the maximum size of decreasing 
+-> print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index 0dd8fa94..d842949e 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -1,27 +1,23 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
--&gt;declare N and scan N
--&gt;declare an array of size of N 
+->declare N and scan N
+->declare an array of size of N 
   and scan it 
--&gt;declare variables to store the
+->declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
- -&gt;curr_size=1
- -&gt;max_size = 0
+ ->curr_size=1
+ ->max_size = 0
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
-		-&gt;update max_size, curr_size
+		->update max_size, curr_size
 	  else
-		  -&gt;update curr_size
+		  ->update curr_size
 	
--&gt; print the maximum size of decreasing 
+-> print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index d1d227dd..fb4ea16b 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -1,15 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
--&gt;declare N and scan N
--&gt;declare an array of size of N 
+->declare N and scan N
+->declare an array of size of N 
   and scan it 
 
- -&gt;curr_size=1
- -&gt;max_size = 0   //to take care of empty array
+ ->curr_size=1
+ ->max_size = 0   //to take care of empty array
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
 		++curr_size
@@ -17,9 +14,8 @@
 		 curr_size=1;
 	 max_size = (max_size&gt;curr_size)?max_size:curr_size
 	
--&gt; print the maximum size of decreasing 
+-> print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 1d820a5c..782b15d3 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -1,18 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -27,4 +24,3 @@
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
+++ b/src/lab/exp10/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index 17aabae7..40acf619 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -1,20 +1,16 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
--&gt;declare and scan N
--&gt; declare an array of size N 
+->declare and scan N
+-> declare an array of size N 
    and scan the array
- -&gt;declare an auxiliary array of
+ ->declare an auxiliary array of
    size of N to implement the 
    recursive formula
- -&gt;Implement the recursive formula
+ ->Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index 39967322..7df43da2 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -1,26 +1,22 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
--&gt;declare and scan N
--&gt; declare an array of size N 
+->declare and scan N
+-> declare an array of size N 
    and scan the array
- -&gt;declare an auxiliary array of
+ ->declare an auxiliary array of
    size of N to implement the 
    recursive formula
   for i=0 to N
-	  -&gt;Initialise best[i]
+	  ->Initialise best[i]
 	  for j=0 to i-1
 		if arr[i]&lt;arr[j]
 			best[i] = max(best[i],best[j]+1)
-	  -&gt;Try to update the answer
- -&gt;Implement the recursive formula
+	  ->Try to update the answer
+ ->Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index cec5e0a6..5a042c48 100755
--- a/src/lab/exp10/Hints2/Hint_3.html
+++ b/src/lab/exp10/Hints2/Hint_3.html
@@ -1,13 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
--&gt;declare and scan N
--&gt; declare an array of size N 
+->declare and scan N
+-> declare an array of size N 
    and scan the array
- -&gt;declare an auxiliary array of
+ ->declare an auxiliary array of
    size of N to implement the 
    recursive formula
   int longest_length=0;
@@ -22,4 +19,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index 2bb826be..b646bb15 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -1,12 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -32,4 +29,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index 6fb94c04..87fbf1dc 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<html lang="en">
+<head>
+
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,33 +79,35 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just need to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the currrent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the previous number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 This is a very famous problem. It's known as longest increasing subsequence problem.Let us consider a naive approach of solving this problem. For every subsequence if it is a increasing subsequence we try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity of this appraoch it is clear that it is goin to take 2<sup>N</sup>*N operations. So, if N = 30, this approach would take 32212254720 (~3*10<sup>11</sup>) operations. Looking at the constraints it is obvious that this algorithm is not feasible. Now we look at the standard solution. You may refer wikipedia for the same.  
 </p>
@@ -123,7 +122,7 @@ <h3>Recursive formulation </h3>
 <b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </p>
 <p align="right"></p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -133,56 +132,67 @@ <h3>Recursive formulation </h3>
 			
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+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
-</div> <!-- top div -->
+			</div>
+ 		</div>
+	</footer>
 
 
 
+</div> <!-- top div -->
 
-	
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -233,7 +243,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp10/content1.html b/src/lab/exp10/content1.html
index 0e7199b9..383d1231 100755
--- a/src/lab/exp10/content1.html
+++ b/src/lab/exp10/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> Sequences </h1>
 
 <p>Please insert your code here</p> -->
 
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1_1.html b/src/lab/exp10/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp10/content1_1.html
+++ b/src/lab/exp10/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp10/content1_2.html b/src/lab/exp10/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp10/content1_2.html
+++ b/src/lab/exp10/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content1_3.html b/src/lab/exp10/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp10/content1_3.html
+++ b/src/lab/exp10/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content2.html b/src/lab/exp10/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp10/content2.html
+++ b/src/lab/exp10/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content2_1.html b/src/lab/exp10/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp10/content2_1.html
+++ b/src/lab/exp10/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content3.html b/src/lab/exp10/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp10/content3.html
+++ b/src/lab/exp10/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content3_1.html b/src/lab/exp10/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp10/content3_1.html
+++ b/src/lab/exp10/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content4.html b/src/lab/exp10/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp10/content4.html
+++ b/src/lab/exp10/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5.html b/src/lab/exp10/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp10/content5.html
+++ b/src/lab/exp10/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5_1.html b/src/lab/exp10/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp10/content5_1.html
+++ b/src/lab/exp10/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp10/content5_2.html b/src/lab/exp10/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp10/content5_2.html
+++ b/src/lab/exp10/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/content5_3.html b/src/lab/exp10/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp10/content5_3.html
+++ b/src/lab/exp10/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/default.html b/src/lab/exp10/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp10/default.html
+++ b/src/lab/exp10/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp10/edit_area/plugins/charmap/popup.html b/src/lab/exp10/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp10/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp10/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp10/lab.html b/src/lab/exp10/lab.html
index bb99adc1..a8a95667 100755
--- a/src/lab/exp10/lab.html
+++ b/src/lab/exp10/lab.html
@@ -1,294 +1,291 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Sequences </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Sequences </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp10/lab_test.html b/src/lab/exp10/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp10/lab_test.html
+++ b/src/lab/exp10/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp10/prob_desc.html b/src/lab/exp10/prob_desc.html
index a1d5b741..3457ba01 100755
--- a/src/lab/exp10/prob_desc.html
+++ b/src/lab/exp10/prob_desc.html
@@ -1,61 +1,57 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
-						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
-						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
-						Output:6<br/>
-						Input: 1 2 3 4 5 6 7 8<br/>
-						Output: 1<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
-	positive integers (each &lt;=10^9).
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br/>
-						Output:6<br/>
-						Input: 6 <br/>
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						</li>
-
-			</ol></div>
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
+						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
+						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
+						Output:6<br />
+						Input: 1 2 3 4 5 6 7 8<br />
+						Output: 1<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
+	positive integers (each &lt=10^9).
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br />
+						Output:6<br />
+						Input: 6 <br />
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						</li>
+
+			</div>
+	</body>
+</html>
diff --git a/src/lab/exp10/quiz.html b/src/lab/exp10/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp10/quiz.html
+++ b/src/lab/exp10/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp10/test.html b/src/lab/exp10/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp10/test.html
+++ b/src/lab/exp10/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp10/theory.html b/src/lab/exp10/theory.html
index c33b13f7..aa5aa2d7 100755
--- a/src/lab/exp10/theory.html
+++ b/src/lab/exp10/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,20 +32,22 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p><h3>Problem 1</h3>
+<pre>
+This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -61,17 +60,16 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
+		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 2d660d02..556fc7d1 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -1,7 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre> 
+<pre> 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index e71bc2c5..2e599feb 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -1,23 +1,19 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
--&gt;declare and scan N,
+->declare and scan N,
   do check the limits of N
--&gt;declare a variable to store
+->declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
--&gt;Use the ideas from the hints
+->Use the ideas from the hints
   section to calculate the sum of
   divisors of large number
--&gt;check if the sum is equal to N
+->check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index 9b613bf9..d01816ad 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -1,24 +1,20 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
--&gt;declare and scan N,
+->declare and scan N,
   do check the limits of N
--&gt;declare a variable to store
+->declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
--&gt;sum = 0
+->sum = 0
   for i=2;i&lt;=n/i;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
--&gt;check if the sum is equal to N
+->check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index c44479d9..5c4ac523 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
--&gt;long long N,sum=0;
-  scanf("%lld",&amp;N);
--&gt;int temp = sqrt(N); 
--&gt;sum = 0
+->long long N,sum=0;
+  scanf("%lld",&N);
+->int temp = sqrt(N); 
+->sum = 0
   for i=2;i&lt;=temp;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
--&gt;check if the sum is equal to N
+->check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 8acead46..6d11bbf3 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -1,14 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&amp;n);
+	scanf("%lld",&n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
@@ -31,4 +28,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index 0d2041d6..2bfd964d 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -20,10 +17,9 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&amp;N,&amp;W);
+	scanf("%d%d",&N,&W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp2/Hints2/Hint_0.html
+++ b/src/lab/exp2/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index 2da71983..94a2d3c1 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan a,b
--&gt;until a,b are not both 1
+->declare and scan a,b
+->until a,b are not both 1
   try to reduce them to 1
   by calculating q, E at each step
--&gt;while calculating q's in the above
+->while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 98dd6066..94dbe047 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
+++ b/src/lab/exp2/Hints2/Hint_2.html
@@ -1,19 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan a,b
--&gt;
+->declare and scan a,b
+->
   while a and b are not 1 
 	 calculate q and E
 	 and re-calculate 
 	 a,b based on E.
--&gt;while calculating q's in the above
+->while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index 060273bc..08cda95e 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
+++ b/src/lab/exp2/Hints2/Hint_3.html
@@ -1,18 +1,14 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan a,b
--&gt;
+->declare and scan a,b
+->
   while a and b are not 1 
 	 q = step(a/b)
 	 E = b /(a-b*q)
 	 Re calculate 
 	 a,b based on E.
--&gt;
+->
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 640bcdf9..54bc0c85 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -1,11 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
+	scanf("%d%d",&a,&b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -27,4 +24,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index 640bcdf9..54bc0c85 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -1,11 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
+	scanf("%d%d",&a,&b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -27,4 +24,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/bk_index.html b/src/lab/exp2/bk_index.html
index 187943a9..b96e8068 100755
--- a/src/lab/exp2/bk_index.html
+++ b/src/lab/exp2/bk_index.html
@@ -1,99 +1,95 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 28<br />
+						Output: YES<br />
+						Input: 16 <br />
+						Output: NO<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains 2 positive integers separated by a space.  
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 239 51 <br />
+						Output: 4 1 2 5 2<br />
+						Input: 27 10<br />
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp2/content1.html b/src/lab/exp2/content1.html
index 26b5bbcc..3c1b38ab 100755
--- a/src/lab/exp2/content1.html
+++ b/src/lab/exp2/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,12 +187,12 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> Beauty of Numbers </h1>
+			<h1> Beauty of Numbers</a> </h1>
 			</div>
 
 		</div>
@@ -218,4 +215,3 @@ <h1> Beauty of Numbers </h1>
 
 <p>Please insert your code here</p> -->
 
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1_1.html b/src/lab/exp2/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp2/content1_1.html
+++ b/src/lab/exp2/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp2/content1_2.html b/src/lab/exp2/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp2/content1_2.html
+++ b/src/lab/exp2/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content1_3.html b/src/lab/exp2/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp2/content1_3.html
+++ b/src/lab/exp2/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content2.html b/src/lab/exp2/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp2/content2.html
+++ b/src/lab/exp2/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content2_1.html b/src/lab/exp2/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp2/content2_1.html
+++ b/src/lab/exp2/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content3.html b/src/lab/exp2/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp2/content3.html
+++ b/src/lab/exp2/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content3_1.html b/src/lab/exp2/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp2/content3_1.html
+++ b/src/lab/exp2/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content4.html b/src/lab/exp2/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp2/content4.html
+++ b/src/lab/exp2/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5.html b/src/lab/exp2/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp2/content5.html
+++ b/src/lab/exp2/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5_1.html b/src/lab/exp2/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp2/content5_1.html
+++ b/src/lab/exp2/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp2/content5_2.html b/src/lab/exp2/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp2/content5_2.html
+++ b/src/lab/exp2/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/content5_3.html b/src/lab/exp2/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp2/content5_3.html
+++ b/src/lab/exp2/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/default.html b/src/lab/exp2/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp2/default.html
+++ b/src/lab/exp2/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp2/edit_area/plugins/charmap/popup.html b/src/lab/exp2/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp2/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp2/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp2/furtherReadings.html b/src/lab/exp2/furtherReadings.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp2/furtherReadings.html
+++ b/src/lab/exp2/furtherReadings.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp2/lab.html b/src/lab/exp2/lab.html
index fc575c50..ebf5c798 100755
--- a/src/lab/exp2/lab.html
+++ b/src/lab/exp2/lab.html
@@ -1,294 +1,291 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Beauty of Numbers  </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Beauty of Numbers  </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/>
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp2/lab_test.html b/src/lab/exp2/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp2/lab_test.html
+++ b/src/lab/exp2/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp2/previndex.html b/src/lab/exp2/previndex.html
index be4637d5..144dbe7f 100755
--- a/src/lab/exp2/previndex.html
+++ b/src/lab/exp2/previndex.html
@@ -1,99 +1,95 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 28<br />
+						Output: YES<br />
+						Input: 16 <br />
+						Output: NO<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains 2 positive integers separated by a space.  
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 239 51 <br />
+						Output: 4 1 2 5 2<br />
+						Input: 27 10<br />
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp2/prob_desc.html b/src/lab/exp2/prob_desc.html
index 796dc0d6..ea85ee29 100755
--- a/src/lab/exp2/prob_desc.html
+++ b/src/lab/exp2/prob_desc.html
@@ -1,64 +1,60 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-					</li>	
-				</ol></div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 28<br />
+						Output: YES<br />
+						Input: 16 <br />
+						Output: NO<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains 2 positive integers separated by a space.  
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 239 51 <br />
+						Output: 4 1 2 5 2<br />
+						Input: 27 10<br />
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+					</li>	
+				</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp2/quiz.html b/src/lab/exp2/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp2/quiz.html
+++ b/src/lab/exp2/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index 1db97b3e..4fd70b87 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan N, take 
+->declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- -&gt;Implement the logic discussed in the 
+ ->Implement the logic discussed in the 
   theory section
 
- -&gt;Report the result;
+ ->Report the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index ae4f0fec..a054f737 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan N, take 
+->declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- -&gt;while n is not a single digit number
+ ->while n is not a single digit number
     n = sum_digits(n)
 
- -&gt;Report the result;
+ ->Report the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index 83229a0b..2b359ca0 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -1,24 +1,20 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
--&gt;Take care of data type of n(parameter) 
+->Take care of data type of n(parameter) 
   while passing arguments 
 
 int sum_digits(n):
 	return n?(n%10)+sum_digits(n/10):0
 
 main(){
--&gt;declare and scan N, take 
+->declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- -&gt;while n is not a single digit number
+ ->while n is not a single digit number
     n = sum_digits(n)
 
- -&gt;Report the result;
+ ->Report the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 9c9ca233..39a6b8f5 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -12,7 +9,7 @@
 
 int main(){
 	long long n;
-	scanf("%lld",&amp;n);
+	scanf("%lld",&n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -28,4 +25,3 @@
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
+++ b/src/lab/exp3/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index 333f83e2..09158cbc 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -1,19 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan the units 
+->declare and scan the units 
   digit
--&gt;Declare an array to store the 
+->Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- -&gt;Implement the multiplication logic
+ ->Implement the multiplication logic
    of multiplying a large number with
    a digit
- -&gt;Check out the termination condition 
--&gt; return 0;
+ ->Check out the termination condition 
+-> return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index 47ec8b03..7104ac35 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan the units 
+->declare and scan the units 
   digit
--&gt;Declare an array to store the 
+->Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- -&gt;Keep track of just the last digit
+ ->Keep track of just the last digit
    generated and the carry and update
    the last digit and carry in the loop
    after multiplying last digit with 
    the units digit
 
- -&gt;Check out the termination condition 
--&gt; return 0;
+ ->Check out the termination condition 
+-> return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 42b69fe8..3c33b030 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -1,20 +1,16 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
--&gt;declare and scan the units 
+->declare and scan the units 
   digit
--&gt;Declare an array to store the 
+->Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- -&gt; int value = (multiplication_digit*unit_digit+carry)
+ -> int value = (multiplication_digit*unit_digit+carry)
     arr[index]=value%10 //store the digit
     carry = value/10
     multiplication_digit = arr[index++]
- -&gt;Check out the termination condition 
--&gt; return 0;
+ ->Check out the termination condition 
+-> return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index af2119a4..f205610f 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -1,13 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&amp;unit_digit);
+	scanf("%d",&unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -26,7 +23,7 @@
 	
 	
 	int i;
-	for(i=index-2;i&gt;=0;i--)
+	for(i=index-2;i>=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -34,4 +31,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index af2119a4..f205610f 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -1,13 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&amp;unit_digit);
+	scanf("%d",&unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -26,7 +23,7 @@
 	
 	
 	int i;
-	for(i=index-2;i&gt;=0;i--)
+	for(i=index-2;i>=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -34,4 +31,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 70ad7f5a..4d742ebd 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<html lang="en">
+<head>
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,19 +79,21 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -105,28 +104,28 @@ <h2>Problem 1</h2>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
 </p>
 <p>
-N=W*1000*X+100+Y*10+Z<br/>
-eg: For N=3548<br/>
-N=3*1000+5*100+4*10+8<br/>
-<br/><br/><br/></p>
+N=W*1000*X+100+Y*10+Z<br>
+eg: For N=3548<br>
+N=3*1000+5*100+4*10+8<br>
+</br></br></br></p>
 <p>
 So, clearly the remainder after divison with 9 depends upon remainder after division with 3000, 500, 40 and 8, which are 3, 5, 4, and 8 respectively. Hence, the divisibility test for 9 states that a number is divisible by 9 if the sum digits of the number is divisible by 9. How to check whether sum of the digits is divisible by nine? Keep on doing the same test on the sum until the problem becomes trivial.
 </p>
 <p>
-So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br/>
-346 gives 6 as the remainder  SUM=6<br/>
-34 gives 4 as the remainder   SUM=10<br/>
-3 gives 3 as remainder        SUM=13<br/>
-<br/><br/><br/><br/></p>
+So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br>
+346 gives 6 as the remainder  SUM=6<br>
+34 gives 4 as the remainder   SUM=10<br>
+3 gives 3 as remainder        SUM=13<br>
+</br></br></br></br></p>
 <p>
-Now repeat the same procedure with SUM=13<br/>
-13 gives 3 as the remainder   SUM=3<br/>
-1 gives 1 as the remainder    SUM=4<br/>
-Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br/>
-<br/><br/><br/><br/></p>
+Now repeat the same procedure with SUM=13<br>
+13 gives 3 as the remainder   SUM=3<br>
+1 gives 1 as the remainder    SUM=4<br>
+Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br>
+</br></br></br></br></p>
 
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Suppose the number we require is say (X[0],X[1],...,X[N]). We dont know what X[0] ,X[1],...X[N-1] are
@@ -136,51 +135,51 @@ <h2>Problem 2</h2>
 <b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which
 we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time. So we carry on like this.
-<br/> <br/>
-Step1: xxxxxx4  <br/>
-*4<br/>
-------<br/>
-6 and carry = 1<br/>
-------<br/>
-Step2:<br/>
-xxxxx64<br/>
-*4<br/>
-------<br/>
-56 and carry = 2<br/>
-------<br/>
-Step3:<br/>
-xxxx564<br/>
-*4<br/>
-------<br/>
-256 and carry = 2<br/>
-------<br/>
-Step4:<br/>
-xxx2564<br/>
-*4<br/>
-------<br/>
-0256 and carry = 1<br/>
-------<br/>
-Step5:<br/>
-xx02564<br/>
-*4<br/>
-------<br/>
-10256 and carry = 0<br/>
-------<br/>
-Step6:<br/>
-x102564<br/>
-*4<br/>
-------<br/>
-410256 and carry = 0<br/>
-------<br/>
+<br> <br>
+Step1: xxxxxx4  <br>
+*4<br>
+------<br>
+6 and carry = 1<br>
+------<br>
+Step2:<br>
+xxxxx64<br>
+*4<br>
+------<br>
+56 and carry = 2<br>
+------<br>
+Step3:<br>
+xxxx564<br>
+*4<br>
+------<br>
+256 and carry = 2<br>
+------<br>
+Step4:<br>
+xxx2564<br>
+*4<br>
+------<br>
+0256 and carry = 1<br>
+------<br>
+Step5:<br>
+xx02564<br>
+*4<br>
+------<br>
+10256 and carry = 0<br>
+------<br>
+Step6:<br>
+x102564<br>
+*4<br>
+------<br>
+410256 and carry = 0<br>
+------<br>
 
 At step 6, you can observe that the number is exactly the circular number. So we stop doing it.
 The stopping criteria is simple. The carry must be 0 and the units digit with which we multiply
 must be same as the last digit generated in the product. Here multiplication digit is 4. Thus the output is 102564.
 
 
-<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></p>
+</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></p>
 <p align="right"></p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -190,56 +189,69 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer id="footer"><div class="footer-top" id="contact">
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-        <p>
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-	</p>
-        <p>
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-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
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-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
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+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" > QA Integration
+				Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
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+				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
+				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
+				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
+				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+	                </div>
 
+			<div class="col-md-3 border-right-green-dotted" id="contact" >
+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
+				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+			</div>
 
-</div> <!-- top div -->
+			<div class="col-md-2 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
+			</div>
 
 
+ 		</div>
+	</footer>
 
-	
+
+
+</div> <!-- top div -->
+
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -290,7 +302,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp3/content1.html b/src/lab/exp3/content1.html
index cf7d0546..4a126c4d 100755
--- a/src/lab/exp3/content1.html
+++ b/src/lab/exp3/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,12 +187,12 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
 			<div id="logo">
-			<h1> More on Numbers  </h1>
+			<h1> More on Numbers </a> </h1>
 			</div>
 
 		</div>
@@ -218,4 +215,3 @@ <h1> More on Numbers  </h1>
 
 <p>Please insert your code here</p> -->
 
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1_1.html b/src/lab/exp3/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp3/content1_1.html
+++ b/src/lab/exp3/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp3/content1_2.html b/src/lab/exp3/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp3/content1_2.html
+++ b/src/lab/exp3/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content1_3.html b/src/lab/exp3/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp3/content1_3.html
+++ b/src/lab/exp3/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content2.html b/src/lab/exp3/content2.html
index 5c6a1768..01af13b3 100755
--- a/src/lab/exp3/content2.html
+++ b/src/lab/exp3/content2.html
@@ -1,14 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content2_1.html b/src/lab/exp3/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp3/content2_1.html
+++ b/src/lab/exp3/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content3.html b/src/lab/exp3/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp3/content3.html
+++ b/src/lab/exp3/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content3_1.html b/src/lab/exp3/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp3/content3_1.html
+++ b/src/lab/exp3/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content4.html b/src/lab/exp3/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp3/content4.html
+++ b/src/lab/exp3/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5.html b/src/lab/exp3/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp3/content5.html
+++ b/src/lab/exp3/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5_1.html b/src/lab/exp3/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp3/content5_1.html
+++ b/src/lab/exp3/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp3/content5_2.html b/src/lab/exp3/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp3/content5_2.html
+++ b/src/lab/exp3/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/content5_3.html b/src/lab/exp3/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp3/content5_3.html
+++ b/src/lab/exp3/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/default.html b/src/lab/exp3/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp3/default.html
+++ b/src/lab/exp3/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp3/edit_area/plugins/charmap/popup.html b/src/lab/exp3/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp3/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp3/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp3/lab.html b/src/lab/exp3/lab.html
index 2ae942dc..6c94e89f 100755
--- a/src/lab/exp3/lab.html
+++ b/src/lab/exp3/lab.html
@@ -1,294 +1,291 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> More on Numbers </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> More on Numbers </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/>
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp3/lab_test.html b/src/lab/exp3/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp3/lab_test.html
+++ b/src/lab/exp3/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp3/prob_desc.html b/src/lab/exp3/prob_desc.html
index c91cda99..486c7906 100755
--- a/src/lab/exp3/prob_desc.html
+++ b/src/lab/exp3/prob_desc.html
@@ -1,72 +1,69 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-				<ol>
-						<li> <h2>Problem 1:</h2>
-Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
-(This was very popular before your mod operator was invented :-)) If you add the digits of the number
-repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
-example
-
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 12101<br/>
-						Output: NO<br/>
-						Input: 9009 <br/>
-						Output: YES<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
-  the result is the number with its decimal digits rotated to the right, where the units digit becoming
-  its high-order digit. For example, 102564 is a circular number because of the multiplication:
-  <pre>				102564
-      				      *4
-				-------
-				410256
-				-------
-</pre>
-	
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-			Input contains a single postive integer N( &lt; 10). 
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-				Output must contain a smallest circular positive number whose units digit must be N.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2  <br/>
-						Output:105263157894736842<br/>
-						Input: 4<br/>
-						Output: 102564<br/>
-						<center>
-						Please note that result may not fit even in long long(64 bit integer).
-						</center>
-					
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						</li>
-				</ol></div>
-
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+				<ol>
+						<li> <h2>Problem 1:</h2>
+Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
+(This was very popular before your mod operator was invented :-)) If you add the digits of the number
+repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
+example
+
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 12101<br />
+						Output: NO<br />
+						Input: 9009 <br />
+						Output: YES<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
+  the result is the number with its decimal digits rotated to the right, where the units digit becoming
+  its high-order digit. For example, 102564 is a circular number because of the multiplication:
+  <pre>
+				102564
+      				      *4
+				-------
+				410256
+				-------
+</pre>
+	
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+			Input contains a single postive integer N( &lt 10). 
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+				Output must contain a smallest circular positive number whose units digit must be N.
+				<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 2  <br />
+						Output:105263157894736842<br />
+						Input: 4<br />
+						Output: 102564<br/>
+						<center>
+						Please note that result may not fit even in long long(64 bit integer).
+						</center>
+					
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						</li>
+				</div>
+
+
+	</body>
+</html>
diff --git a/src/lab/exp3/quiz.html b/src/lab/exp3/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp3/quiz.html
+++ b/src/lab/exp3/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp3/test.html b/src/lab/exp3/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp3/test.html
+++ b/src/lab/exp3/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp3/theory.html b/src/lab/exp3/theory.html
index 401c6123..a494db51 100755
--- a/src/lab/exp3/theory.html
+++ b/src/lab/exp3/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,11 +32,12 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
+        <p><h3>Problem 1</h3>
+<pre>
+     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
         N=W*1000*X+100+Y*10+Z
         eg: For N=3548
         N=3*1000+5*100+4*10+8
@@ -57,16 +55,17 @@ <h2>Theory</h2>
 	Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.
 	
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
 	and also the value of N. But fortunately we know some properties  about this number with which we can find
 	out what number it is :) . We know the value of X[N]. Let take the sample input. X[N] = 4 in that case. 
 	Say we represent the product as (P[0],P[1],...,P[M]). Now X[N] = 4 and when we multiply it with 
 	<b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 	that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which 
 	we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time.So we carry on like this.
-	<br/> <br/> 
+	<br> <br> 
 	Step1: xxxxxx4
 		    *4 
 		------    
@@ -110,13 +109,12 @@ <h2>Theory</h2>
 	      
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index 45ae29b1..eb3aaa5a 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -1,19 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
--&gt;declare N and scan N 
+->declare N and scan N 
 
--&gt;declare a double variable and initialize
+->declare a double variable and initialize
   it to 0
 	 
--&gt;Calculate the number of digits using the 
+->Calculate the number of digits using the 
   formula mentioned in theory section
 	
--&gt;print the final result; 
+->print the final result; 
 	 
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index a657f11a..cd20ed8d 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
 main(){
--&gt; declare N and scan N 
+-> declare N and scan N 
 
--&gt; declare a variable which can store
+-> declare a variable which can store
    the number of digits and intialise to 0
 	
--&gt;double result; = 0;
+->double result; = 0;
   for i = 1 to N
 	result+=log10(i);
 
--&gt;print the final result;
+->print the final result;
 	 
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index df90d065..c52c4887 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -1,23 +1,19 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
+<pre>
+#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
 main(){
 
--&gt;declare N and scan N 
+->declare N and scan N 
 
--&gt;double result = 0
+->double result = 0
 
--&gt;for i = 1 to N
+->for i = 1 to N
       result+=log10(i);
 
 //Use step(x)=(int)x
 
--&gt;print the final result;
+->print the final result;
 
--&gt;printf("%d\n"(int)result+1);
+->printf("%d\n"(int)result+1);
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 767d7506..7ca4a0de 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -1,13 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
+<pre>
+#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 
 for(i=1;i&lt;=N;i++)
 	result+=log10(i);
@@ -16,4 +13,3 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
+++ b/src/lab/exp4/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index 212ceff5..37d56d23 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -1,23 +1,19 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;int N
+	->int N
 
-	-&gt;scan N
+	->scan N
 
-	-&gt;power_five = 0
+	->power_five = 0
 
-	-&gt; Calculate the power of
+	-> Calculate the power of
 	   five	in N! 
 
-	-&gt; print the power of five
+	-> print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index 3d761f68..8cfbdda8 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -1,24 +1,20 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;int N
+	->int N
 
-	-&gt;scan N
+	->scan N
 
-	-&gt;power_five = 0
+	->power_five = 0
 
-	-&gt; while(N){
+	-> while(N){
 		power_five+=N/5;
 		N/=5;
 	 }
-	-&gt; print the power of five
+	-> print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index a2c3724f..80c86531 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -1,12 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&amp;N);
+	 scanf("%d",&N);
 	 int power_five = 0;
 
 	 while(N){
@@ -19,4 +16,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index a2c3724f..80c86531 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -1,12 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&amp;N);
+	 scanf("%d",&N);
 	 int power_five = 0;
 
 	 while(N){
@@ -19,4 +16,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 21dbaa2d..f22a421b 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<html lang="en">
+<head>
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,19 +79,21 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -102,77 +101,77 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
-We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
-1! = 1<br/>
-2! = 1*2 = 2<br/>
-3! = 1*2*3 = 6<br/>
-4! = 1*2*3*4 = 24<br/>
-.<br/>
-.<br/>
-.<br/>
-10! = 3628800<br/>
-So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br/>
-<br/><br/></p>
+We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br>
+1! = 1<br>
+2! = 1*2 = 2<br>
+3! = 1*2*3 = 6<br>
+4! = 1*2*3*4 = 24<br>
+.<br>
+.<br>
+.<br>
+10! = 3628800<br>
+So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br>
+</br></br></p>
 <p>
-Similarly 53! would take 2*68=136 operations from 52!.<br/>
-52! would take 2*67 = 134 operations from 51!<br/>
-51! would take 2*65 = 130 operations from 50!.<br/>
+Similarly 53! would take 2*68=136 operations from 52!.<br>
+52! would take 2*67 = 134 operations from 51!<br>
+51! would take 2*65 = 130 operations from 50!.<br>
 
-We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br/>
-<br/></p>
+We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br>
+</br></p>
 <p>
-Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br/>
+Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br>
 
-For any N, <br/>
-N=x*10<sup>exp</sup><br/> 
-=&gt; log10(N) = log10(x) + exp.<br/> 
-For n=95,<br/>
-log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br/>
-N = x*10<sup>exp</sup> , x &lt; 1 <br/> 
-Taking step on both sides. <br/>
-=&gt; step(log10(N)) = step(log10(x)+exp)<br/>
-=&gt; step(log10(N)) = exp-1<br/>
-=&gt; exp = step(log10(N))+1<br/>
-=&gt; No_digits(N) = step(log10(N))+1<br/>
-<br/><br/></p>
+For any N, <br>
+N=x*10<sup>exp</sup><br> 
+=&gt; log10(N) = log10(x) + exp.<br> 
+For n=95,<br>
+log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br>
+N = x*10<sup>exp</sup> , x &lt; 1 <br> 
+Taking step on both sides. <br>
+=&gt; step(log10(N)) = step(log10(x)+exp)<br>
+=&gt; step(log10(N)) = exp-1<br>
+=&gt; exp = step(log10(N))+1<br>
+=&gt; No_digits(N) = step(log10(N))+1<br>
+</br></br></p>
 <p>
-Applying the above formula to calculate the number of digits of N! gives<br/>
-No_digits(N!) = step(log10(N!) ) +1<br/>
-=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br/>
+Applying the above formula to calculate the number of digits of N! gives<br>
+No_digits(N!) = step(log10(N!) ) +1<br>
+=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br>
 =&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br/></p>
 <p>
-log10(N) can be easily calculated by the log10 function in math.h.<br/>
-<br/></p>
+log10(N) can be easily calculated by the log10 function in math.h.<br>
+</br></p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
-Let us observe the zeroes in the factorial of a few numbers.<br/>
+Let us observe the zeroes in the factorial of a few numbers.<br>
 
-4!=24           (0 zeroes)<br/>
-5!=120          (1 zeroes)<br/>
-6!=720          (1 zeroes)<br/>
-7!=5040         (1 zeroes)<br/>
-8!=40320        (1 zeroes)<br/>
-9!=362880       (1 zeroes)<br/>
-10!=3628800     (2 zeroes)<br/>
-11!-14!         (2 zeroes)<br/>
-15!             (3 zeroes)<br/>
-<br/><br/></p>
+4!=24           (0 zeroes)<br>
+5!=120          (1 zeroes)<br>
+6!=720          (1 zeroes)<br>
+7!=5040         (1 zeroes)<br>
+8!=40320        (1 zeroes)<br>
+9!=362880       (1 zeroes)<br>
+10!=3628800     (2 zeroes)<br>
+11!-14!         (2 zeroes)<br>
+15!             (3 zeroes)<br>
+</br></br></p>
 <p>
-We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br/>
-<br/></p>
+We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br>
+</br></p>
 <p>
-Let p be a prime number.<br/>
+Let p be a prime number.<br>
 
-n!=1×2×…×(n−1)×n <br/>
-We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br/>
-Thus:<br/>
-μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br/>
-Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br/>
-<br/><br/></p>
+n!=1×2×…×(n−1)×n <br>
+We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br>
+Thus:<br>
+μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br>
+Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br>
+</br></br></p>
 <p align="right"></p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
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+			</div>
 
-</div> <!-- top div -->
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+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
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+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
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+				style="border-radius: 50%; width: 38px;
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+
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+
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@@ -282,7 +294,4 @@ <h4>Follow Us</h4>
 	});
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-
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-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp4/content1.html b/src/lab/exp4/content1.html
index 28689891..c4873978 100755
--- a/src/lab/exp4/content1.html
+++ b/src/lab/exp4/content1.html
@@ -1,17 +1,14 @@
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-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> Factorials </h1>
 
 <p>Please insert your code here</p> -->
 
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1_1.html b/src/lab/exp4/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp4/content1_1.html
+++ b/src/lab/exp4/content1_1.html
@@ -1,8 +1,4 @@
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+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp4/content1_2.html b/src/lab/exp4/content1_2.html
index ae51be58..7464d2d1 100755
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@@ -1,9 +1,6 @@
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+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content1_3.html b/src/lab/exp4/content1_3.html
index 5885fa15..b348b262 100755
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-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content2.html b/src/lab/exp4/content2.html
index 0b01d31a..f7de92aa 100755
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@@ -1,11 +1,7 @@
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-</body></html>
\ No newline at end of file
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden"  name="highHint" id="highHint_id" value=
diff --git a/src/lab/exp4/content2_1.html b/src/lab/exp4/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp4/content2_1.html
+++ b/src/lab/exp4/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content3.html b/src/lab/exp4/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp4/content3.html
+++ b/src/lab/exp4/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content3_1.html b/src/lab/exp4/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp4/content3_1.html
+++ b/src/lab/exp4/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content4.html b/src/lab/exp4/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp4/content4.html
+++ b/src/lab/exp4/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5.html b/src/lab/exp4/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp4/content5.html
+++ b/src/lab/exp4/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5_1.html b/src/lab/exp4/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp4/content5_1.html
+++ b/src/lab/exp4/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp4/content5_2.html b/src/lab/exp4/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp4/content5_2.html
+++ b/src/lab/exp4/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/content5_3.html b/src/lab/exp4/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp4/content5_3.html
+++ b/src/lab/exp4/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/default.html b/src/lab/exp4/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp4/default.html
+++ b/src/lab/exp4/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp4/edit_area/plugins/charmap/popup.html b/src/lab/exp4/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp4/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp4/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp4/lab.html b/src/lab/exp4/lab.html
index 82d050fb..63458a6f 100755
--- a/src/lab/exp4/lab.html
+++ b/src/lab/exp4/lab.html
@@ -1,294 +1,291 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Factorials </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Factorials </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/>
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp4/lab_test.html b/src/lab/exp4/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp4/lab_test.html
+++ b/src/lab/exp4/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp4/prob_desc.html b/src/lab/exp4/prob_desc.html
index 260d87a2..4ea13cb1 100755
--- a/src/lab/exp4/prob_desc.html
+++ b/src/lab/exp4/prob_desc.html
@@ -1,49 +1,45 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-		<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-
-		</li></ol></div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+		<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+
+		</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp4/quiz.html b/src/lab/exp4/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp4/quiz.html
+++ b/src/lab/exp4/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp4/test.html b/src/lab/exp4/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp4/test.html
+++ b/src/lab/exp4/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp4/theory.html b/src/lab/exp4/theory.html
index 0a5d0f78..4640f79e 100755
--- a/src/lab/exp4/theory.html
+++ b/src/lab/exp4/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,11 +32,12 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
+        <p><h3>Problem 1</h3>
+<pre>
+	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
         1! = 1
        	2! = 1*2 = 2
 	3! = 1*2*3 = 6
@@ -71,25 +69,26 @@ <h2>Theory</h2>
 	of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10^2 which is a 2 
 	digit number . Consider N=125 , which can be written as 0.125 *10^3 which is a 3 digit number. Evidently calcula-
 	-ting the exponent of 10 in the scientific notaion and gives the number of digits.For any N ,N=x*10^exp 
-        =&gt; log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
-	N = x*10^exp , x&lt;1 
+        => log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
+	N = x*10^exp , x<1 
 	Taking step on both sides . 
-	=&gt; step(log10(N)) = step(log10(x)+exp) 
-	=&gt; step(log10(N)) = exp-1 
-	=&gt; exp = step(log10(N))+1
-	=&gt; No_digits(N) = step(log10(N))+1
+	=> step(log10(N)) = step(log10(x)+exp) 
+	=> step(log10(N)) = exp-1 
+	=> exp = step(log10(N))+1
+	=> No_digits(N) = step(log10(N))+1
 	
 	Applying the above formula to calculate the number of digits of N! gives
 	No_digits(N!) = step(log10(N!) ) +1
-	=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
-	=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
+	=> No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
+	=> No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
 
 	log10(N) can be easily calculated by the log10 function in math.h. 
 		
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	Let us observe the zeroes in the factorial of a few numbers.
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	Let us observe the zeroes in the factorial of a few numbers.
 	
 	4!=24		(0 zeroes)
 	5!=120		(1 zeroes)
@@ -107,25 +106,24 @@ <h2>Theory</h2>
 	Let us formalize the proof.
 	Let p be a prime number.
 
-	n!=1×2×…×(n−1)×n
-	We see that any integer m such that 0 &lt; m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
+	n!=1×2×…×(n−1)×n
+	We see that any integer m such that 0 < m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
 	times.
-	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
+	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
 	And that is all the occurrences of p as a factor of n!.
 	Thus:
-	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
+	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
 	
-Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
+Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
 
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index 410c375b..b4585a55 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
@@ -11,14 +8,13 @@
 
 main(){
 
--&gt;declare and scan the string
--&gt;do take care to scan the entire line
+->declare and scan the string
+->do take care to scan the entire line
 
--&gt;Now implement the logic of whether a 
+->Now implement the logic of whether a 
   string is palindrome or not with some
   modifications
 
--&gt; report the result;
+-> report the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index 9a59321f..af5ca7c4 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -16,15 +13,14 @@
 int flag=1;
 
 while(i &lt; j){
-	-&gt;Trverse from i<sup>th</sup> char to right
+	->Trverse from i<sup>th</sup> char to right
 	  until you hit a  character which is 
 	  a alphabet
-	-&gt;Trverse from j<sup>th</sup> char to left
+	->Trverse from j<sup>th</sup> char to left
 	  until you hit a  character which is a 
 	  alphabet
-	-&gt;Do  matching appropriately
+	->Do  matching appropriately
 }
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index 076998f5..8892935d 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -14,8 +11,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
+	while(i &lt; j && !isAlphabet(s[i]))i++;	
+	while(i &lt; j && !isAlphabet(s[j]))j--;	
 
 	if(i&gt;=j)
 		break;
@@ -29,4 +26,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index d7c48cca..aa5a9cc3 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -1,12 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
+	return (x&gt;='a' && x&lt;='z')||(x&gt;='A' && x&lt;='Z');
 }
 main(){
 char s[1001];
@@ -15,8 +12,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
+	while(i &lt; j && !isAlphabet(s[i]))i++;	
+	while(i &lt; j && !isAlphabet(s[j]))j--;	
 	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
@@ -34,4 +31,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index 15e48a6b..688155ed 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -1,14 +1,10 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
-  -&gt;declare two strings
-  -&gt;scan them 
-  -&gt;check if 2<sup>nd</sup> string
+  ->declare two strings
+  ->scan them 
+  ->check if 2<sup>nd</sup> string
     is a subsequence of 1<sup>st</sup> string
-  -&gt;output the result;
+  ->output the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index fcd4a27e..4d615431 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
-  -&gt;declare two strings
-  -&gt;scan the strings 
+  ->declare two strings
+  ->scan the strings 
 
-  -&gt;As stated in the theory try to 
+  ->As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
+	   if(p&lt;n && str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -&gt; output the result;
+  -> output the result;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index 74253e9f..ba9e60bd 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
-  -&gt;declare two strings
-  -&gt;scan the strings 
+  ->declare two strings
+  ->scan the strings 
 
-  -&gt;As stated in the theory try to 
+  ->As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
+	   if(p&lt;n && str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -&gt; if p==n then yes 
+  -> if p==n then yes 
      else no
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 84e4d612..7743c840 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -1,14 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -20,4 +17,3 @@
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index e559a3cd..c6b659d5 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<html lang="en">
+<head>
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,26 +79,29 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>
+					</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string.
 </p>
@@ -109,37 +109,37 @@ <h2>Problem 1</h2>
 Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that the characters in string2 must appear in the same order as in string1.
-<br/>
-<br/></p>
+<br>
+</br></p>
 <p>
-</p><h4> Mathematical formulation </h4>
+<h4> Mathematical formulation </h4>
 <p>Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
 such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct?
-B[0] occurs at X[0]<br/>
-B[1] occurs at X[1]<br/>
-..<br/>
-..<br/>
-..<br/>
-B[N-1] occurs at X[N-1]<br/>
-<br/><br/></p>
+B[0] occurs at X[0]<br>
+B[1] occurs at X[1]<br>
+..<br>
+..<br>
+..<br>
+B[N-1] occurs at X[N-1]<br>
+</br></br></p>
 <p>
 Now, we remove all other characters from A except those which appear at positions indicated by array X. Then we get string B.Thus the problem formulation is correct. The order constraint between X[i]'s is element because we want the characters in B to appear in order in A.
-<br/>
-<br/></p>
-<br/>
+<br>
+</br></p>
+<br>
 <h4> Solution</h4>
 <p>So now once we have stated the problem mathematically we would like to know how can we find
 array X subjected to the constraints mentioned.Lets see how can we find X[0]. You must be apply
 the same logic on how to find other values of array X once you are familier with X[0].
 X[0] has only one constraint to be satisfied which is A[X[0]] = B[0] . There can be many values
 of X[0] which can satisfy the above constraint. So which value should X[0] take?
-<br/>
-<br/>
-<br/><br/></p>
+<br>
+<br>
+</br></br></p>
 <h4> Proofs </h4>
 <p>
 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value, amongst all the members of set S. If |S|=1 , then it is obviously valid. So, assume |S|&gt;=2. We will deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. It can happen that B[1] is not present in [b+1 m] at all which would imply that string B cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a then it is possible that string B might be a subsequence of string A. Thus, X[0] must take the minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen as X[0]. 
@@ -149,7 +149,7 @@ <h4> Proofs </h4>
 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO.
 </p>
 <p align="right"></p>
-<br/><p></p><br/></div>						</div>
+</br></p></br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -159,55 +159,68 @@ <h4> Proofs </h4>
 			
 	</div> <!-- content div -->
 		
-	<footer id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+	<footer>
+		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
+			<div class="col-md-4 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" > QA Integration
+				Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
+				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
+				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
+				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
+				<a href="./faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+	                </div>
 
-</div> <!-- top div -->
+			<div class="col-md-3 border-right-green-dotted" id="contact" >
+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
+				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
+			</div>
 
 
-	
+ 		</div>
+	</footer>
+
+
+</div> <!-- top div -->
+
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -258,7 +271,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp5/content1.html b/src/lab/exp5/content1.html
index cdc6a272..5ed89bc6 100755
--- a/src/lab/exp5/content1.html
+++ b/src/lab/exp5/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> String Operations </h1>
 
 <p>Please insert your code here</p>
  -->
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1_1.html b/src/lab/exp5/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp5/content1_1.html
+++ b/src/lab/exp5/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp5/content1_2.html b/src/lab/exp5/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp5/content1_2.html
+++ b/src/lab/exp5/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content1_3.html b/src/lab/exp5/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp5/content1_3.html
+++ b/src/lab/exp5/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content2.html b/src/lab/exp5/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp5/content2.html
+++ b/src/lab/exp5/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content2_1.html b/src/lab/exp5/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp5/content2_1.html
+++ b/src/lab/exp5/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content3.html b/src/lab/exp5/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp5/content3.html
+++ b/src/lab/exp5/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content3_1.html b/src/lab/exp5/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp5/content3_1.html
+++ b/src/lab/exp5/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content4.html b/src/lab/exp5/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp5/content4.html
+++ b/src/lab/exp5/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5.html b/src/lab/exp5/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp5/content5.html
+++ b/src/lab/exp5/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5_1.html b/src/lab/exp5/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp5/content5_1.html
+++ b/src/lab/exp5/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp5/content5_2.html b/src/lab/exp5/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp5/content5_2.html
+++ b/src/lab/exp5/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/content5_3.html b/src/lab/exp5/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp5/content5_3.html
+++ b/src/lab/exp5/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/default.html b/src/lab/exp5/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp5/default.html
+++ b/src/lab/exp5/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp5/edit_area/plugins/charmap/popup.html b/src/lab/exp5/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp5/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp5/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp5/lab.html b/src/lab/exp5/lab.html
index 84b4b6e1..bcba3dc9 100755
--- a/src/lab/exp5/lab.html
+++ b/src/lab/exp5/lab.html
@@ -1,293 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  String Operations </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  String Operations </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/>
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp5/lab_test.html b/src/lab/exp5/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp5/lab_test.html
+++ b/src/lab/exp5/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp5/prob_desc.html b/src/lab/exp5/prob_desc.html
index 102a908a..d905329e 100755
--- a/src/lab/exp5/prob_desc.html
+++ b/src/lab/exp5/prob_desc.html
@@ -1,61 +1,57 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-				<ol>
-		<li> <h2>Problem 1:</h2>
-						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
-						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
-						recognizing a palindromes like: (a) “Madam, I’m Adam.� (b) “Eve.� etc. Write a program that
-						detects palindromes. Your program should accept a string from the key board and output YES/NO.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: Madam, I'm Adam<br/>
-						Output:YES<br/>
-						Input: Eve.<br/>
-						Output: NO<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
-							deletion of none, one or more characters.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain two strings separated by a space and size of each string is at max 10^7<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: hyderabad her<br/>
-						Output: YES<br/>
-						Input: hyderabad dear<br/>
-						Output: NO<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-					</li>					
-				</ol></div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+				<ol>
+		<li> <h2>Problem 1:</h2>
+						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
+						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
+						recognizing a palindromes like: (a) “Madam, I’m Adam.” (b) “Eve.” etc. Write a program that
+						detects palindromes. Your program should accept a string from the key board and output YES/NO.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: Madam, I'm Adam<br />
+						Output:YES<br />
+						Input: Eve.<br />
+						Output: NO<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
+							deletion of none, one or more characters.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain two strings separated by a space and size of each string is at max 10^7<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: hyderabad her<br />
+						Output: YES<br />
+						Input: hyderabad dear<br />
+						Output: NO<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+					</li>					
+				</div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp5/quiz.html b/src/lab/exp5/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp5/quiz.html
+++ b/src/lab/exp5/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp5/test.html b/src/lab/exp5/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp5/test.html
+++ b/src/lab/exp5/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp5/theory.html b/src/lab/exp5/theory.html
index 85d396b1..58830de6 100755
--- a/src/lab/exp5/theory.html
+++ b/src/lab/exp5/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,21 +32,23 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
+        <p><h3>Problem 1</h3>
+<pre>
+   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 
 	
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
 	the characters in string2 must appear in the same order as in string1.
 	<h4> Mathematical formulation </h4>
 	Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
-	such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct? 
+	such that X[i] &lt X[i+1] for 0&lt=i&lt=N-2 and A[X[i]] = B[i] for 0&lt=i&lt=N-1. Why this formulation is correct? 
 	B[0] occurs at X[0] 
 	B[1] occurs at X[1]
 	..
@@ -67,27 +66,26 @@ <h4> Solution</h4>
 	of X[0] which can satisfy the above constraint. So which value should X[0] take? 
 	<h5> Proofs </h5> 
 	 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value,
-	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt;=2. We will
-	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. 
-	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. 
+	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt=2. We will
+	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt X[0]. 
+	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt B[0]. 
 	 It can happen that B[1] is not present in [b+1 m] at all which would imply that string B 
 	 cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a
 	 then it is possible that string B might be a subsequence of string A.Thus X[0] must take the 
 	 minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen
-	 as X[0]. <br/> <br/>          Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
+	 as X[0]. <br> <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
 	 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO. 
 	
 	 
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 03d556c5..286deef4 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	-&gt;termination conditions
-	-&gt;for each possibility 
+	->termination conditions
+	->for each possibility 
 	  of choosing i items of weight
 	  2^index find the number of solutions
 	 
-	-&gt;return the total number of solutions
+	->return the total number of solutions
 	
 }
 main(){
--&gt;scan N,W 
--&gt;call the recursive function with appropriate
+->scan N,W 
+->call the recursive function with appropriate
   parameters
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index 1acb8503..0c9c3f65 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -1,24 +1,20 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	-&gt;termination conditions
+	->termination conditions
 	
 	for i=0;i*2^index&lt;=W;i++
-		-&gt;choosing i items each
+		->choosing i items each
 		  of weight 2^index
 	 	no_ways(W-i*2^index,index+1)
 
-	-&gt;return the total number of solutions
+	->return the total number of solutions
 	
 }
 main(){
--&gt;scan N,W 
--&gt;call the recursive function with appropriate
+->scan N,W 
+->call the recursive function with appropriate
   parameters
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index 17cc4154..e5f6af0a 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -1,25 +1,21 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	-&gt;termination conditions
+	->termination conditions
 	
 	int ans = 0;
 	for i=0;i*2^index&lt;=W;i++
-		-&gt;choosing i items each
+		->choosing i items each
 		  of weight 2^index
 	 	ans+=no_ways(W-i*2^index,index+1)
 
-	-&gt;return ans
+	->return ans
 	
 }
 main(){
--&gt;scan N,W 
--&gt;call the recursive function with appropriate
+->scan N,W 
+->call the recursive function with appropriate
   parameters
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 0d2041d6..2bfd964d 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -20,10 +17,9 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&amp;N,&amp;W);
+	scanf("%d%d",&N,&W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index 0d2041d6..2bfd964d 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -20,10 +17,9 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&amp;N,&amp;W);
+	scanf("%d%d",&N,&W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index 9473b3ea..e5f72afd 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -1,16 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
-	-&gt; Trivial/termination cases handled first
+	-> Trivial/termination cases handled first
 	   like when N=0 or D=0
-	-&gt;try all possibilities with the given weight
+	->try all possibilities with the given weight
 	  weight[N-1] 
 main(){
-	-&gt;scan N and weights and call isPossible
+	->scan N and weights and call isPossible
 	  function
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index 7860e25f..656aa72c 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -1,25 +1,21 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
--&gt;Assume a weight of D on right PAN
+->Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-&gt; Trivial/termination cases handled first
+	-> Trivial/termination cases handled first
 	   like when N=0 or D=0
-	-&gt; Explore the possibilities 
+	-> Explore the possibilities 
 	   keeping weight on right side of PAN 
-		   -&gt;isPossible(N-1,D+weight[N-1],weight)
+		   ->isPossible(N-1,D+weight[N-1],weight)
 	   keeping the weight on left side of PAN
-	    	   -&gt;isPossible(N-1,D-weight[N-1],weight)
+	    	   ->isPossible(N-1,D-weight[N-1],weight)
 	   Not keeping the weight on any PAN
-	           -&gt;isPossible(N-1,D,weight)
+	           ->isPossible(N-1,D,weight)
 }
 
 main(){
-	-&gt;scan N and weights and call isPossible
+	->scan N and weights and call isPossible
 	  function
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 3f4406fe..98b6c3b1 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
+++ b/src/lab/exp6/Hints2/Hint_3.html
@@ -1,19 +1,15 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
--&gt;Assume a weight of D on right PAN
+->Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-&gt; Trivial/termination cases handled first
+	-> Trivial/termination cases handled first
 	   like when N=0 or D=0
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight)
 }
 
 main(){
-	-&gt;scan N and weights and call isPossible
+	->scan N and weights and call isPossible
 	  function
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 8d6a9955..2f727855 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -12,12 +9,12 @@
 
 main(){
 	int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&amp;D);
+	scanf("%d",&D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -25,4 +22,3 @@
 	return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 87e86c4f..8fc9e4cd 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
+++ b/src/lab/exp6/Hints2/Hint_5.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -12,16 +9,15 @@
 
 main(){
 	int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&amp;D);
+	scanf("%d",&D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
 		puts("NO");
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 7e2949ba..90af4ab4 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<html lang="en">
+<head>
+
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,19 +79,21 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -105,7 +104,7 @@ <h2>Problem 1</h2>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep some weights on left side and some weights on right side and we may not use some weights at all. Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of weights between two pans is 0 we report yes. Consider the i<sup>th </sup>weight and suppose the current difference between left pan and right pan is x. If x is 0 then yes we donot choose any weight and thus return 1.
@@ -113,34 +112,34 @@ <h2>Problem 2</h2>
 <p>
 Otherwise we have three options
 </p>
-<br/>
+<br>
 <p>
 <b>Option1:</b>
 
 Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right pan becomes x - weight[i].
-<br/>
+<br>
 <b>Option2:</b>
 Put the i<sup>th</sup> weight on left pan.In which case the difference between left and right pan becomes x + weight[i].
-<br/>
+<br>
 <b>Option3:</b>
 Donot put the i<sup>th</sup> weight on either pan.In which case the difference between left and right pan remains x.
-<br/><br/></p>
+</br></br></p>
 <p>
-<br/>
+<br>
 This gives the following  <b> Recursive Function : </b>
-<br/></p>
+</br></p>
 <p>
-Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br/>
-w[i],w[i+1],...,w[n-1].<br/>
-Obviously, F(i,0) is 1, Otherwise<br/>
-F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br/>
-
-F(i+1,x) corresponds to Option3.<br/>
-F(i+1,x-w[i]) corresponds to Option1.<br/>
-F(i+1,x+w[i]) corresponds to Option2.<br/>
-<br/><br/><br/><br/><br/><br/><br/></p>
+Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br>
+w[i],w[i+1],...,w[n-1].<br>
+Obviously, F(i,0) is 1, Otherwise<br>
+F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br>
+
+F(i+1,x) corresponds to Option3.<br>
+F(i+1,x-w[i]) corresponds to Option1.<br>
+F(i+1,x+w[i]) corresponds to Option2.<br>
+</br></br></br></br></br></br></br></p>
 <p align="right"></p>
-<br/><br/></div>						</div>
+</br></br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -150,55 +149,68 @@ <h2>Problem 2</h2>
 			
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+				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
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+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" > QA Integration
+				Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
+				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
+				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
+				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
+				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+	                </div>
 
-</div> <!-- top div -->
+			<div class="col-md-3 border-right-green-dotted" id="contact" >
+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
+				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+			</div>
+
+			<div class="col-md-2 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
+			</div>
 
 
+ 		</div>
+	</footer>
 
-	
+
+</div> <!-- top div -->
+
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -249,7 +261,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp6/content1.html b/src/lab/exp6/content1.html
index a66ead40..0d2f2eb1 100755
--- a/src/lab/exp6/content1.html
+++ b/src/lab/exp6/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> Recursion </h1>
 
 <p>Please insert your code here</p>
  -->
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1_1.html b/src/lab/exp6/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp6/content1_1.html
+++ b/src/lab/exp6/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp6/content1_2.html b/src/lab/exp6/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp6/content1_2.html
+++ b/src/lab/exp6/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content1_3.html b/src/lab/exp6/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp6/content1_3.html
+++ b/src/lab/exp6/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content2.html b/src/lab/exp6/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp6/content2.html
+++ b/src/lab/exp6/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content2_1.html b/src/lab/exp6/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp6/content2_1.html
+++ b/src/lab/exp6/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content3.html b/src/lab/exp6/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp6/content3.html
+++ b/src/lab/exp6/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content3_1.html b/src/lab/exp6/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp6/content3_1.html
+++ b/src/lab/exp6/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content4.html b/src/lab/exp6/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp6/content4.html
+++ b/src/lab/exp6/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5.html b/src/lab/exp6/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp6/content5.html
+++ b/src/lab/exp6/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5_1.html b/src/lab/exp6/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp6/content5_1.html
+++ b/src/lab/exp6/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp6/content5_2.html b/src/lab/exp6/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp6/content5_2.html
+++ b/src/lab/exp6/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/content5_3.html b/src/lab/exp6/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp6/content5_3.html
+++ b/src/lab/exp6/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/default.html b/src/lab/exp6/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp6/default.html
+++ b/src/lab/exp6/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp6/edit_area/plugins/charmap/popup.html b/src/lab/exp6/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp6/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp6/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp6/lab.html b/src/lab/exp6/lab.html
index d071f6d2..a43bcc73 100755
--- a/src/lab/exp6/lab.html
+++ b/src/lab/exp6/lab.html
@@ -1,292 +1,289 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Recursion </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Recursion </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp6/lab_test.html b/src/lab/exp6/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp6/lab_test.html
+++ b/src/lab/exp6/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp6/prob_desc.html b/src/lab/exp6/prob_desc.html
index 660efce9..4baca820 100755
--- a/src/lab/exp6/prob_desc.html
+++ b/src/lab/exp6/prob_desc.html
@@ -1,65 +1,61 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-<ol>
-						<li> <h2>Problem 1:</h2>
-					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt; 2N .
-					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
-				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
-					them (put them in a state of equilibrium). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
-
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
-				weights on any side<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 4<br/>
-						Output: 3 <br/>
-						Input: 5 10<br/>
-						Output: 14 <br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a weighing pan, n weights and a destination weight D, print “YES� or “NO� depending whether
-you can weight D using other weights given.
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						 Input begins with numbers of weights n, then n values
-denoting mass of each weight and then in the end destination weight D. 
-						<hr/>
-						<center><b>Output Specification</b></center><br/>
-					As the output, print “YES� if it is possible to weight D, otherwise “NO�
-						<hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input:  3 1 3 4 2<br/>
-						Output: YES<br/>
-						Input: 2 1 3 5 <br/>
-						Output: NO <br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-		
-			</li></ol></div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+<ol>
+						<li> <h2>Problem 1:</h2>
+					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt 2N .
+					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
+				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
+					them (put them in a state of equilibrium). 
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
+
+						<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
+				weights on any side<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 2 4<br />
+						Output: 3 <br />
+						Input: 5 10<br />
+						Output: 14 <br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a weighing pan, n weights and a destination weight D, print “YES” or “NO” depending whether
+you can weight D using other weights given.
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						 Input begins with numbers of weights n, then n values
+denoting mass of each weight and then in the end destination weight D. 
+						<hr>
+						<center><b>Output Specification</b></center><br />
+					As the output, print “YES” if it is possible to weight D, otherwise “NO”
+						<hr>
+						<center><b>Sample Input and Output</b></center><br />
+						Input:  3 1 3 4 2<br />
+						Output: YES<br />
+						Input: 2 1 3 5 <br />
+						Output: NO <br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+		
+			</div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp6/quiz.html b/src/lab/exp6/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp6/quiz.html
+++ b/src/lab/exp6/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp6/test.html b/src/lab/exp6/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp6/test.html
+++ b/src/lab/exp6/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp6/theory.html b/src/lab/exp6/theory.html
index b8d0bd33..0243e6af 100755
--- a/src/lab/exp6/theory.html
+++ b/src/lab/exp6/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,16 +32,18 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
+        <p><h3>Problem 1</h3>
+<pre>
+	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
 	some weights on left side and some weights on right side and we may not use some weights at all.
 	Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing 
 	w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of 
@@ -52,7 +51,7 @@ <h2>Theory</h2>
 	current difference between left pan and right pan is x.
 	If x is 0 then yes we donot choose any weight and thus return 1.
 	Otherwise we have three options
-	<br/>
+	<br>
 	<h5>Option1:</h5>
 		Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right
 		pan becomes x - weight[i].
@@ -74,13 +73,12 @@ <h4> Recursive Function </h4>
 		F(i+1,x+w[i]) corresponds to Option2.
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index f2985e49..937fd9b6 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -1,16 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
-	-&gt;scan the two integers
+	->scan the two integers
 	    in the form of the strings
-	-&gt;traverse over the strings 
+	->traverse over the strings 
 	  and add digit by digit taking care
 	  of the carry and storing in the 
 	  output string.
-	-&gt;print the output string
+	->print the output string
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index 0c86e255..31232ec6 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -1,20 +1,16 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 
 main(){
 
--&gt;scan the input strings
--&gt;declare the output string
+->scan the input strings
+->declare the output string
 
--&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
-	-&gt;value1 = str1[i]-'0' 
-	-&gt;value2 = str1[j]-'0'
-	-&gt;store the result; output[k]
-	-&gt;update carry
+->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+	->value1 = str1[i]-'0' 
+	->value2 = str1[j]-'0'
+	->store the result; output[k]
+	->update carry
 	
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index 1c983d9c..e9091dd8 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 
 main(){
 
--&gt;scan the input strings
--&gt;declare the output string
+->scan the input strings
+->declare the output string
 
--&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
 	
-	-&gt;value1 = (i&gt;=0)?str1[i]-'0':0
-	-&gt;value2 = (j&gt;=0)?str2[j]-'0':0
-	-&gt;output[k++] = (value1+value2+carry)%10;
-	-&gt;carry = (value1+value2+carry)/10;
+	->value1 = (i&gt;=0)?str1[i]-'0':0
+	->value2 = (j&gt;=0)?str2[j]-'0':0
+	->output[k++] = (value1+value2+carry)%10;
+	->carry = (value1+value2+carry)/10;
 	
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index 808bacf7..5d478615 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -1,37 +1,33 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}
-</pre>
-</body></html>
\ No newline at end of file
+<pre>
+#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+main(){
+	char s1[51],s2[51];
+	scanf("%s %s",s1,s2);
+	char sum[52];
+	
+	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
+	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
+                           
+		value = carry;
+		if(i&gt;=0){
+			value+=(s1[i]-'0');
+			i--;
+		}
+		if(j&gt;=0){
+			value+=(s2[j]-'0');
+			j--;
+		}
+		sum[index++]=(char)(value%10 + '0');
+		carry = value/10;
+	}
+	//take care of the cases like 99+1
+	if(carry)
+		sum[index++]='1';
+		
+	for(i=index-1;i&gt;=0;i--)
+		printf("%c",sum[i]);
+	puts("");
+	return 0;
+}
+</pre>
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index 257c50f4..3cc1c9c3 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -1,15 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;scan the input
-	-&gt;The square root must 
+	->scan the input
+	->The square root must 
 	  be in the range [1 N]
-	-&gt;so do binary search 
+	->so do binary search 
 	  in the range [1 N]
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index 8457f863..c3df075a 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;scan the input
-	-&gt;The square root must 
+	->scan the input
+	->The square root must 
 	  be in the range [1 N]
-	-&gt;so do binary search 
+	->so do binary search 
 	 in [1 N] taking the
 	 decision based on the comparison 
 	 between mid*mid and N
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index 0cb4c159..86806181 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -1,14 +1,11 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
 	double mid = (start+end)/2;
 
-	-&gt;termination condition
+	->termination condition
 
 	if(mid*mid &gt; N)
 		return search(start,mid-1);
@@ -21,4 +18,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index d427d49c..266d0061 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
@@ -22,9 +19,8 @@
 
 }
 main(){
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index ce699ce9..761118a9 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<html lang="en">
+<head>
+
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,45 +79,47 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell. Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than 10 then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive integer &gt; 1 lies in between [1 N]. Suppose P is a number such that P*P &gt; N then the result must be in the interval [1 P-1] oterwise if P*P &lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval or conclude that mid is the square root of N.While coding do take care of the fact of precision since mid*mid may not be exactly equal N.
-<br/>
-<br/></p>
+<br>
+</br></p>
 <h3>Time complexity</h3>
-<br/>
+<br>
 <p>
 If you analyze the number of operations it takes this function to run it is easy to see that it will take logN (logN to base 2) operations. At every step of the search we chose either (start,mid-1) or (mid+1,end) which means the interval size gets reduced by half. Initially the range is N, in the next step it will become N/2, then N/4, and so after x steps the search range will be N/(2^x) which will be 1 when x is logN. So, the number of iterations is log(N).
 </p>
 <p align="right"></p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -130,55 +129,68 @@ <h3>Time complexity</h3>
 			
 	</div> <!-- content div -->
 		
-	<footer id="footer"><div class="footer-top" id="contact">
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+	<footer>
+		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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+				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" > QA Integration
+				Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
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+				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
+				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
+				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+	                </div>
+
+			<div class="col-md-3 border-right-green-dotted" id="contact" >
+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
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+				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+			</div>
 
-</div> <!-- top div -->
+			<div class="col-md-2 border-right-green-dotted" >
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+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
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+ 		</div>
+	</footer>
 
-	
+
+</div> <!-- top div -->
+
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -229,7 +241,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp7/content1.html b/src/lab/exp7/content1.html
index 2efb071f..68b459ac 100755
--- a/src/lab/exp7/content1.html
+++ b/src/lab/exp7/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1>   Advanced Arithmatic  </h1>
 
 <p>Please insert your code here</p>
  -->
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1_1.html b/src/lab/exp7/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp7/content1_1.html
+++ b/src/lab/exp7/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp7/content1_2.html b/src/lab/exp7/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp7/content1_2.html
+++ b/src/lab/exp7/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content1_3.html b/src/lab/exp7/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp7/content1_3.html
+++ b/src/lab/exp7/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content2.html b/src/lab/exp7/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp7/content2.html
+++ b/src/lab/exp7/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content2_1.html b/src/lab/exp7/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp7/content2_1.html
+++ b/src/lab/exp7/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content3.html b/src/lab/exp7/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp7/content3.html
+++ b/src/lab/exp7/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content3_1.html b/src/lab/exp7/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp7/content3_1.html
+++ b/src/lab/exp7/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content4.html b/src/lab/exp7/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp7/content4.html
+++ b/src/lab/exp7/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5.html b/src/lab/exp7/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp7/content5.html
+++ b/src/lab/exp7/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5_1.html b/src/lab/exp7/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp7/content5_1.html
+++ b/src/lab/exp7/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp7/content5_2.html b/src/lab/exp7/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp7/content5_2.html
+++ b/src/lab/exp7/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/content5_3.html b/src/lab/exp7/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp7/content5_3.html
+++ b/src/lab/exp7/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/default.html b/src/lab/exp7/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp7/default.html
+++ b/src/lab/exp7/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp7/edit_area/plugins/charmap/popup.html b/src/lab/exp7/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp7/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp7/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp7/lab.html b/src/lab/exp7/lab.html
index b4ed72a6..52d01799 100755
--- a/src/lab/exp7/lab.html
+++ b/src/lab/exp7/lab.html
@@ -1,293 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Advanced Atrihmatic </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Advanced Atrihmatic </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp7/lab_test.html b/src/lab/exp7/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp7/lab_test.html
+++ b/src/lab/exp7/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp7/prob_desc.html b/src/lab/exp7/prob_desc.html
index dd7acff8..7b85da53 100755
--- a/src/lab/exp7/prob_desc.html
+++ b/src/lab/exp7/prob_desc.html
@@ -1,51 +1,47 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-				<div id="content">
-				<ol>
-	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-				There will be two positive integers (&lt; 10^50) separated by a space.
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must contain a single number representing the sum of the two integers
-						<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 323289329329392893 3283928392839283928932329<br/>
-						Output:3283928716128613258325222<br/>
-						Input: 10 99<br/>
-						Output: 109<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-					Find the square root of a positive integer using binary search
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
-					the judges solution will be accepted as correct <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2.2361<br/>
-						Input: 25<br/>
-						Output: 5.0000<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						</li>
-				</ol></div>
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+				<div id="content">
+				<ol>
+	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+				There will be two positive integers (&lt 10^50) separated by a space.
+						<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must contain a single number representing the sum of the two integers
+						<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 323289329329392893 3283928392839283928932329<br />
+						Output:3283928716128613258325222<br />
+						Input: 10 99<br />
+						Output: 109<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+					Find the square root of a positive integer using binary search
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
+					the judges solution will be accepted as correct <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2.2361<br />
+						Input: 25<br />
+						Output: 5.0000<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						</li>
+				</div>
+	</body>
+</html>
diff --git a/src/lab/exp7/quiz.html b/src/lab/exp7/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp7/quiz.html
+++ b/src/lab/exp7/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp7/test.html b/src/lab/exp7/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp7/test.html
+++ b/src/lab/exp7/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp7/theory.html b/src/lab/exp7/theory.html
index e255f699..5a30da65 100755
--- a/src/lab/exp7/theory.html
+++ b/src/lab/exp7/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,19 +32,21 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
+        <p><h3>Problem 1</h3>
+<pre>
+If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
         Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
-	integer&gt;1 lies in between [1 N]. Suppose P is a number such that P*P&gt; N then the result must be in the interval 
-	[1 P-1] oterwise if P*P&lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
+	integer&gt1 lies in between [1 N]. Suppose P is a number such that P*P&gt N then the result must be in the interval 
+	[1 P-1] oterwise if P*P&lt N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
 	integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending 
 	upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval
 	or conclude that mid is the square root of N.While coding do take care of the fact of precision since 
@@ -61,13 +60,12 @@ <h4>Time complexity</h4>
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
+++ b/src/lab/exp8/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index b575b71a..75d12f7b 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
-	-&gt;declare and scan N
-	-&gt;declare and scan the array
-	-&gt;sort the array
-	-&gt;for each pair (i,j) find 
+	->declare and scan N
+	->declare and scan the array
+	->sort the array
+	->for each pair (i,j) find 
 	  out how many k's exist 
 	  such that arr[i]+arr[j]&lt; arr[k]
-	-&gt;print the final answer
+	->print the final answer
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index 8adbd803..0c9dac84 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
 }
 main(){
-	-&gt;declare and scan N
-	-&gt;declare and scan the array
-	-&gt;sort the array
-	-&gt;for(i=0;i&lt; N;i++)
+	->declare and scan N
+	->declare and scan the array
+	->sort the array
+	->for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	-&gt;print the final answer
+	->print the final answer
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index a003d9d2..0ce98eba 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -1,11 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
-	-&gt;termination condition
+	->termination condition
 	int mid = (start+end)&gt;&gt;1;
 	if(arr[mid]&gt; num)
 		return (end-mid+1)+search(arr,start,mid-1,num);
@@ -13,14 +10,13 @@
 		return search(arr,mid+1,end,num);
 }
 main(){
-	-&gt;declare and scan N
-	-&gt;declare and scan the array
-	-&gt;sort the array
-	-&gt;for(i=0;i&lt; N;i++)
+	->declare and scan N
+	->declare and scan the array
+	->sort the array
+	->for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	-&gt;print the final answer
+	->print the final answer
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index ad5a0bc5..f01cfdcd 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -1,35 +1,31 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-</pre>
-</body></html>
\ No newline at end of file
+<pre>
+#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
+int compare(const void *a,const void *b){
+	return *((int *)a)&gt;*((int *)b);
+}
+int search(int *a,int start,int end,int num){
+	if(start&gt;end)
+		return 0;
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
+		return (end-mid+1)+search(a,start,mid-1,num);
+	else
+		return search(a,mid+1,end,num);
+}
+main(){
+	int N;
+	scanf("%d",&N);
+	int arr[N];
+	int i,j;
+	for(i=0;i&lt; N;i++)
+		scanf("%d",arr+i);
+	qsort(arr,N,sizeof(int),compare);
+	int ans=0;
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
+			ans+=search(arr,0,N-1,arr[i]+arr[j]);
+	printf("%d\n",ans);
+	return 0;
+}
+</pre>
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index 83aa84c0..56b2261b 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -1,17 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 main(){
-	-&gt;scan the input
-	-&gt;for each index in the string
-	   -&gt;update the position array
-	   -&gt;find out how much should be the 
+	->scan the input
+	->for each index in the string
+	   ->update the position array
+	   ->find out how much should be the 
 	  length so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	-&gt;print the minimum length 
+	->print the minimum length 
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index 4d6f6a61..dbdafe15 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -1,21 +1,17 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;scan the input
-	-&gt;for each index in the string
+	->scan the input
+	->for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
-	        -&gt;find out how much should be the 
+	        ->find out how much should be the 
 	  lengt;h so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	-&gt;print the minimum length
+	->print the minimum length
 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index 4f3da51a..d8422685 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -1,11 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<pre>
+#include&lt; stdio.h&gt;
 main(){
-	-&gt;scan the input
-	-&gt;for each index in the string
+	->scan the input
+	->for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
@@ -15,10 +12,9 @@
 			if(minIndex&gt;pos[j])
 				minIndex=pos[j];
 		if(minLength&gt;(index-minIndex+1))
-			-&gt;update minLength;
-	-&gt;print the minimum length
+			->update minLength;
+	->print the minimum length
 
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 216e8f4d..440b1af2 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -1,54 +1,50 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}
-</pre>
-</body></html>
\ No newline at end of file
+<pre>
+#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+
+main(){
+	int N;
+	char str[1000001];
+	scanf("%s",str);
+	scanf("%d",&N);
+	if(!N)
+	{
+		printf("0\n");
+		return 0;
+	}
+	int i,j;
+	char input_char[N];
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&input_char[i]);
+	}
+	
+	int pos[N];
+	for(i=0;i&lt; N;i++)
+		pos[i]=-1;
+
+	int minLength = strlen(str)+1;
+
+	for(i=0;str[i];i++){
+		for(j=0;j&lt; N;j++){
+			if(input_char[j]==str[i])
+				pos[j]=i;
+		}
+		int minValue = 1000001;
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
+				minValue = pos[j];
+
+		if(minValue!=-1 && minLength&gt; (i-minValue+1)){
+			minLength = i-minValue+1;
+		}
+
+	}
+	if(minLength==strlen(str)+1){
+		printf("-1\n");
+	}
+	else{
+		printf("%d\n",minLength);
+	}
+	return 0;
+}
+</pre>
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 6166b82f..59fe2fd0 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<html lang="en">
+<head>
+
+    <meta charset="UTF-8">
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
-	<script src="tabs.js" type="text/javascript"></script>
+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,19 +79,21 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -106,13 +105,13 @@ <h2>Problem 1</h2>
 
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Consider the given string. We need to find the smallest substring which contains all the characters of the given set. Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are scanning the string from the left and we know the latest occurrences of the characters of input set in the input string, say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
 </p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -122,55 +121,68 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+	<footer>
+		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
+			<div class="col-md-4 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
+				class="text-normal-gray-small nounderline"
+				style="color: white" > QA Integration
+				Workshop at IIIT Hyderabad</a>
+				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
+			</div>
 
+			<div class="col-md-2 border-right-green-dotted" >
+<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
+				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
+				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
+				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
+				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
+				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
+				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
+	                </div>
+
+			<div class="col-md-3 border-right-green-dotted" id="contact" >
+<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
+				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
+				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
+				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
+			</div>
 
-</div> <!-- top div -->
+			<div class="col-md-2 border-right-green-dotted" >
+				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
+				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
+				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
+				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
+				class="text-a-lightgreen nounderline"
+				target="_blank" >
+				<img src="../images/social/youtube.png"
+				style="border-radius: 50%; width: 38px;
+				height: 38px" /></a>
 
+			</div>
 
 
+ 		</div>
+	</footer>
 
-	
+
+</div> <!-- top div -->
+
+</body>
+
+
+	<!-- jQuery -->
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -221,7 +233,4 @@ <h4>Follow Us</h4>
 	});
 	</script>
 	
-
-
-
-</body><!-- jQuery --></html>
\ No newline at end of file
+</html>
diff --git a/src/lab/exp8/content1.html b/src/lab/exp8/content1.html
index cbdf5720..f865013e 100755
--- a/src/lab/exp8/content1.html
+++ b/src/lab/exp8/content1.html
@@ -1,17 +1,14 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1>  Searching and Sorting  </h1>
 
 <p>Please insert your code here</p>
  -->
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1_1.html b/src/lab/exp8/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp8/content1_1.html
+++ b/src/lab/exp8/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp8/content1_2.html b/src/lab/exp8/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp8/content1_2.html
+++ b/src/lab/exp8/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content1_3.html b/src/lab/exp8/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp8/content1_3.html
+++ b/src/lab/exp8/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content2.html b/src/lab/exp8/content2.html
index 51cda900..00c1917f 100755
--- a/src/lab/exp8/content2.html
+++ b/src/lab/exp8/content2.html
@@ -1,13 +1,8 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content2_1.html b/src/lab/exp8/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp8/content2_1.html
+++ b/src/lab/exp8/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content3.html b/src/lab/exp8/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp8/content3.html
+++ b/src/lab/exp8/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content3_1.html b/src/lab/exp8/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp8/content3_1.html
+++ b/src/lab/exp8/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content4.html b/src/lab/exp8/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp8/content4.html
+++ b/src/lab/exp8/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5.html b/src/lab/exp8/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp8/content5.html
+++ b/src/lab/exp8/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5_1.html b/src/lab/exp8/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp8/content5_1.html
+++ b/src/lab/exp8/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp8/content5_2.html b/src/lab/exp8/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp8/content5_2.html
+++ b/src/lab/exp8/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/content5_3.html b/src/lab/exp8/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp8/content5_3.html
+++ b/src/lab/exp8/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/default.html b/src/lab/exp8/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp8/default.html
+++ b/src/lab/exp8/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp8/edit_area/plugins/charmap/popup.html b/src/lab/exp8/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp8/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp8/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp8/lab.html b/src/lab/exp8/lab.html
index afdf88e4..74073f03 100755
--- a/src/lab/exp8/lab.html
+++ b/src/lab/exp8/lab.html
@@ -1,293 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Searching and Sorting </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Searching and Sorting </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp8/lab_test.html b/src/lab/exp8/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp8/lab_test.html
+++ b/src/lab/exp8/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp8/prob_desc.html b/src/lab/exp8/prob_desc.html
index 97e98618..a0765c00 100755
--- a/src/lab/exp8/prob_desc.html
+++ b/src/lab/exp8/prob_desc.html
@@ -1,72 +1,68 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-							<li> <h2>Problem 1:</h2>
-You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
-problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
-are considered to be valid traiangles
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
-are separated by spaces and each number is &gt; 0 and &lt; 10^6
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-Print the number of invalid traingles that can be formed.
-						
-		<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5 <br/>
-							1 2 3 4 10<br/>
-						Output:<br/>
-						
-
-						<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a String and a character set we need to find out the length of the 
-smallest substring which contains all the characters of the set.
-
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-The input contains a string(length&lt;=10^5) made up of small letters from english language
-followed by number of characters N(&lt; 26) and then N chracters in the next line 
-follow separated by spaces.
-	
-<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-The output must contain the length of the smallest substring which contains 
-all the characters from the character set. If no such substring exists report -1.
-
-						<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: applelooksred 3 e a p
-						<br/>
-						Output: 5
-						<br/>
-						<br/>
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				
-		</li></div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+							<li> <h2>Problem 1:</h2>
+You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
+problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
+are considered to be valid traiangles
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+Input contains N(&lt= 1000), followed by N numbers in the next line.The numbers
+are separated by spaces and each number is &gt 0 and &lt 10^6
+						<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+Print the number of invalid traingles that can be formed.
+						
+		<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5 <br/>
+							1 2 3 4 10<br />
+						Output:<br>
+						
+
+						</br>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a String and a character set we need to find out the length of the 
+smallest substring which contains all the characters of the set.
+
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+The input contains a string(length&lt=10^5) made up of small letters from english language
+followed by number of characters N(&lt 26) and then N chracters in the next line 
+follow separated by spaces.
+	
+<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+The output must contain the length of the smallest substring which contains 
+all the characters from the character set. If no such substring exists report -1.
+
+						<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: applelooksred 3 e a p
+						<br />
+						Output: 5
+						<br>
+						</br>
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				
+		</div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	</body>
+</html>
diff --git a/src/lab/exp8/quiz.html b/src/lab/exp8/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp8/quiz.html
+++ b/src/lab/exp8/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp8/test.html b/src/lab/exp8/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp8/test.html
+++ b/src/lab/exp8/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp8/theory.html b/src/lab/exp8/theory.html
index 7bfc1958..98e1d5d8 100755
--- a/src/lab/exp8/theory.html
+++ b/src/lab/exp8/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,19 +32,20 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>	Consider three numbers from the set say a,b,c. If either a+b&lt; c or b+c&lt; a or c+a&lt; b  then (a,b,c) cannot
+        <p><h3>Problem 1</h3>
+<pre>
+	Consider three numbers from the set say a,b,c. If either a+b&lt c or b+c&lt a or c+a&lt b  then (a,b,c) cannot
 	form a triangle.Lets state the problem little differently for each pair (a,b) we want to find out how many 
-	numbers c are there such that a+b &lt; c. We consider each pair (a,b) and search for how many numbers are there
+	numbers c are there such that a+b &lt c. We consider each pair (a,b) and search for how many numbers are there
 	which are greater than a+b. This can be done easily using binary search. Sort the array and 
-	consider the interval (start,end) . If arr[mid]&gt; a+b then (mid-end+1) numbers are greater than a+b 
-	otherwise if arr[mid]&lt; a+b then we dont add anything to the result and search in (start,mid-1). 
+	consider the interval (start,end) . If arr[mid]&gt a+b then (mid-end+1) numbers are greater than a+b 
+	otherwise if arr[mid]&lt a+b then we dont add anything to the result and search in (start,mid-1). 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
+</p>
+<p><h3>Problem 2</h3>
 	Consider the given string. We need to find the smallest substring which contains all the characters of the given set.
 	Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much
 	we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are 
@@ -55,15 +53,16 @@ <h2>Theory</h2>
 	say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum
 	value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
-<pre></pre>					
+<pre>
 
+</pre>					
 
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index 683f3789..e69de29b 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -1,5 +0,0 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index 7cd8deb1..b76acb02 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
--&gt;N means the number of weights left
--&gt;weight is an array containing the weights
--&gt;S we need to achieve this weight
--&gt;Handle termination cases
--&gt;recursive calls
+->N means the number of weights left
+->weight is an array containing the weights
+->S we need to achieve this weight
+->Handle termination cases
+->recursive calls
 }
 
 main(){
--&gt;scan the input
--&gt;call the function with 
+->scan the input
+->call the function with 
   appropriate parameters
 }
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index 4146c074..0842b248 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -1,21 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
--&gt;N means the number of weights left
--&gt;weight is an array containing the weights
--&gt;S we need to achieve this weight
--&gt;Handle termination cases
+->N means the number of weights left
+->weight is an array containing the weights
+->S we need to achieve this weight
+->Handle termination cases
 
--&gt;option1. Donot keep weight[N-1] in basket
+->option1. Donot keep weight[N-1] in basket
 	which means we need to attain 
 	S from the next N-1 weights 
 	so call func(N-1,weight,S);
--&gt;option2. keep weight[N-1] in basket 
+->option2. keep weight[N-1] in basket 
   which means we need to attain
   S-weight[N-1] next N-1 weights
   so call func(N-1,weight,S-weight[N-1]);
@@ -24,10 +21,9 @@
 }
 
 main(){
--&gt;scan the input
--&gt;call the function with 
+->scan the input
+->call the function with 
   appropriate parameters
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index c2b75b91..6ba55888 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -1,12 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
--&gt;Handle termination cases
+->Handle termination cases
 
 if(!S)
 	return 1;
@@ -17,11 +14,10 @@
 }
 
 main(){
--&gt;scan the input
--&gt;call the function with 
+->scan the input
+->call the function with 
   appropriate parameters
 }
 
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 3a948543..41e31911 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -16,13 +13,13 @@
 }
 main(){
 	int N;
-	scanf("%d",&amp;N);
+	scanf("%d",&N);
 	int weight[N],i;
 	// Weight array stores the respective weights
 	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&amp;Sum);
+	scanf("%d",&Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -31,4 +28,3 @@
 }
 
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index 9874fb14..8ae9dc7e 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre></pre>
-</body></html>
\ No newline at end of file
+<pre>
+</pre>
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index bd36125f..55cd72dd 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -1,16 +1,12 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
 main(){
--&gt;declare N and scan N weights 
--&gt; for each weight in input find in how 
+->declare N and scan N weights 
+-> for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index 8511622d..cfbf9b73 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -1,26 +1,22 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
--&gt;Option1:
+->Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
--&gt;Option2:
+->Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
 }
 main(){
--&gt;declare N and scan N weights 
--&gt; for each weight in input find in how 
+->declare N and scan N weights 
+-> for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index f9a5a3e8..c14f78e4 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -1,33 +1,29 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
--&gt;termination 
+->termination 
 	if(index==N)
 		return weight[index_needed_achieved]==curr_sum;
 
 if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
 
--&gt;Option1:
+->Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
-	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
--&gt;Option2:
+	->no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
+->Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
-	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum);
+	->no_ways(index+1,index_needed_achieved,weights,curr_sum);
 }
 main(){
--&gt;declare N and scan N weights 
--&gt; for each weight in input find in how 
+->declare N and scan N weights 
+-> for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index 9594703b..48bf44a4 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -1,8 +1,5 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<pre>
+#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -19,7 +16,7 @@
 }
 main(){
 int i;
-scanf("%d",&amp;N);
+scanf("%d",&N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -31,4 +28,3 @@
 }
 	
 </pre>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 61e20e4f..085dd44d 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -1,35 +1,32 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<html lang="en">
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+    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
+    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
     
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+     <link rel="shortcut icon" href="../images/favicon.ico">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
+	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
 	
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+    <link href="../css/style.css" rel="stylesheet">
+	<script type="text/javascript" src = 'tabs.js'></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body id="page-top" class="index">
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -37,13 +34,13 @@
 	        <div class="container-fluid">
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 			            <div class="navbar-header page-scroll">
-			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
+			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,7 +48,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="../search-result.html" method="get">
+			                		<form method="get" action="../search-result.html">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -59,16 +56,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
 			                    </li>
-		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    <li class="page-scroll menu-li menu-li-active">
+			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>
-		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
-			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                    <li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
+			                    </li><li class="page-scroll menu-li " >
+			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -82,34 +79,36 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid">
+			<div class="container-fluid" >
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2">
+						<!--edit1-->
+<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 	Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the weight(w) as the first weights one by one, also taking care the the total weight(S) is not greater than reqired weight W. Those weights which make the total weight(S) greater than W are exluded from the list of avaliable weights for the next recursive. Now we only have to solve the same problem for a simpler case to get the complete solution, i.e., solving the same problem for the remaining weight, W-w, and available pool of weights now also does not have w. If accumulated weight is equal to w, then we increment the counter. If at any time, the pool of remaining weights is exhausted, then that attempt is aborted. So, our recursion function would be needing 2 variables, one containing the list of available weights and the other signifying remaining weight to be accrued.
 
 	</p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 	For each weight in the input we keep it on right pan and try using other weights to balance it. Let us say we have kept i<sup>th</sup> weight on the right pan, out task is now to keep weights on left side of the pan so that the sum of the weights on left side of the pan is equal to the weight on the right side,i.e weight[i]. For each weight W[k], we can keep it either on left pan or we donot to keep it at all. Make sure to disregard the weight when k is equal to i because that weight is already on right side.
 	</p>
@@ -118,15 +117,15 @@ <h3>Recursive formulation </h3>
 	Let F(index,i,S) denotes the number of ways in which we can obtain weight[i] using weights from weight[index], weight[index+1], weight[index+2],..., weight[n-1] and currently because of choosing some weights from weight[0], weight[1],..., weight[index-1] the sum of the weights has become S. So we need to achieve weight[i]-S by choosing some weights from weight[index], weight[index+1],..., weight[n-1].
 	</p>
 <p>
-	A pseudo code would look like: <br/>
+	A pseudo code would look like: <br>
 
-	F(index,i,S) = F(index+1,i,S)   If index=i <br/>
-	= 1             If index=N and S=weight[i] <br/>
-	= 0             If index=N and S!=weight[i]<br/>
-	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br/>
-<br/><br/></p>
+	F(index,i,S) = F(index+1,i,S)   If index=i <br>
+	= 1             If index=N and S=weight[i] <br>
+	= 0             If index=N and S!=weight[i]<br>
+	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br>
+</br></br></p>
 <p align="right"></p>
-<br/></div>						</div>
+</br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -136,55 +135,68 @@ <h3>Recursive formulation </h3>
 			
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+				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
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@@ -235,7 +247,4 @@ <h4>Follow Us</h4>
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\ No newline at end of file
+</html>
diff --git a/src/lab/exp9/content1.html b/src/lab/exp9/content1.html
index 8541015a..c690834b 100755
--- a/src/lab/exp9/content1.html
+++ b/src/lab/exp9/content1.html
@@ -1,17 +1,14 @@
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-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -190,7 +187,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -218,4 +215,3 @@ <h1> Permutation </h1>
 
 <p>Please insert your code here</p>
  -->
-</div></div></article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1_1.html b/src/lab/exp9/content1_1.html
index 40cc8c30..28c05bca 100755
--- a/src/lab/exp9/content1_1.html
+++ b/src/lab/exp9/content1_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><form action="judge.py" method="get" name="judge">
+<form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-</textarea></fieldset></form></body></html>
\ No newline at end of file
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+	
diff --git a/src/lab/exp9/content1_2.html b/src/lab/exp9/content1_2.html
index ae51be58..7464d2d1 100755
--- a/src/lab/exp9/content1_2.html
+++ b/src/lab/exp9/content1_2.html
@@ -1,9 +1,6 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->Language                              ProblemNo
+</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content1_3.html b/src/lab/exp9/content1_3.html
index 5885fa15..b348b262 100755
--- a/src/lab/exp9/content1_3.html
+++ b/src/lab/exp9/content1_3.html
@@ -1,8 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content2.html b/src/lab/exp9/content2.html
index 5c6a1768..7f40fdd9 100755
--- a/src/lab/exp9/content2.html
+++ b/src/lab/exp9/content2.html
@@ -1,14 +1,9 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+<input type="hidden" value="0" name="highHint" id="highHint_id"/>
 
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content2_1.html b/src/lab/exp9/content2_1.html
index 9486dd7d..cd66935a 100755
--- a/src/lab/exp9/content2_1.html
+++ b/src/lab/exp9/content2_1.html
@@ -1,9 +1,5 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
-   <h4> HINTS </h4><br/>
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content3.html b/src/lab/exp9/content3.html
index 484845d1..020f8fbd 100755
--- a/src/lab/exp9/content3.html
+++ b/src/lab/exp9/content3.html
@@ -1,14 +1,11 @@
-<!--contentLeft --><!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
+ </div> <!--contentLeft -->
+  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span id="highHint">
+   <span>Highest Level Hint used: <span  id="highHint">
 
-</span></span></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content3_1.html b/src/lab/exp9/content3_1.html
index 029afe29..a3039c79 100755
--- a/src/lab/exp9/content3_1.html
+++ b/src/lab/exp9/content3_1.html
@@ -1,15 +1,18 @@
-<!--contentRight --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="footer">
+
+ </span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content4.html b/src/lab/exp9/content4.html
index 95b02d8b..72771ea4 100755
--- a/src/lab/exp9/content4.html
+++ b/src/lab/exp9/content4.html
@@ -1,9 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->                   
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 <!--codeId/Problem number has to be selected!-->
 
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5.html b/src/lab/exp9/content5.html
index a864a5d8..ce3fead3 100755
--- a/src/lab/exp9/content5.html
+++ b/src/lab/exp9/content5.html
@@ -1,34 +1,34 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <!--contentLeft -->
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+</div> <!--contentLeft -->
 <div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">	
    </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
 </div> <!--contentRight -->
-				
-			
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5_1.html b/src/lab/exp9/content5_1.html
index 4450d764..6fda2ca3 100755
--- a/src/lab/exp9/content5_1.html
+++ b/src/lab/exp9/content5_1.html
@@ -1,13 +1,13 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
-
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</body></html>
\ No newline at end of file
+
+
+
+
+
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
diff --git a/src/lab/exp9/content5_2.html b/src/lab/exp9/content5_2.html
index 8d76704a..8cb2e3da 100755
--- a/src/lab/exp9/content5_2.html
+++ b/src/lab/exp9/content5_2.html
@@ -1,11 +1,7 @@
-<!--contentLeft --><html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><div id="contentRight">
+</div> <!--contentLeft -->
+<div id="contentRight">
    <h4> HINTS </h4>
    <div id="hintBox">
 <!--hints section-->
 
 
-</div></div></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content5_3.html b/src/lab/exp9/content5_3.html
index 54d8235f..60732c8c 100755
--- a/src/lab/exp9/content5_3.html
+++ b/src/lab/exp9/content5_3.html
@@ -1,22 +1,18 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+ </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
    
    
- <!--contentRight -->
-				
-			
+</div> <!--contentRight -->
+				</div>
+			</article>
 			<div id="footer">
 			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
 			</div>
-		
-			
+		</div>
+	</form>		
 
 	
+</body>
+</html>
 
 
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/content_template.html b/src/lab/exp9/content_template.html
index 0c90db92..94ecf2ff 100755
--- a/src/lab/exp9/content_template.html
+++ b/src/lab/exp9/content_template.html
@@ -1,10 +1,6 @@
 <!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<head></head>
+<h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -16,37 +12,37 @@ <h2>Introduction </h2>
 <li><h2>Problem 1:</h2>
 <p> 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr />
+<b>Output Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-<br/><hr/>
-<br/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+<br><hr />
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr />
+<b>Input Specification</b><br />
 <p>
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr />						
+<b>Output Specification</b><br />
 <p>
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-<br/><hr/>
+<br><hr />
+<b>Sample Input and Output</b><br />
+<br><hr />
 </li>
-</ol></div> 
+</div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
@@ -54,7 +50,7 @@ <h3>Problem 1</h3>
 <p>
 </p>
 
-<br/>
+<br>
 
 <h3>Problem 2</h3>
 <p>
@@ -74,4 +70,3 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/default.html b/src/lab/exp9/default.html
index 332375a3..1c8a55c7 100644
--- a/src/lab/exp9/default.html
+++ b/src/lab/exp9/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp9/edit_area/plugins/charmap/popup.html b/src/lab/exp9/edit_area/plugins/charmap/popup.html
index 7dd6ce4c..4b549db8 100755
--- a/src/lab/exp9/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp9/edit_area/plugins/charmap/popup.html
@@ -1,27 +1,24 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-<title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
-<script language="Javascript" src="jscripts/map.js" type="text/javascript">
-</script>
-</head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<div class="preview" id="preview_code"></div>
-<div class="preview" id="preview_char"></div>
-<h1>{$charmap_title}:</h1>
-<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
-</select>
-<div id="char_list">
-
-</div>
-
-
-
-
-
-</body></html>
\ No newline at end of file
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
+<head>
+<title>{$charmap_title}</title>
+<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
+<link rel="stylesheet" type="text/css" href="css/charmap.css" />
+<script language="Javascript" type="text/javascript" src="jscripts/map.js">
+</script>
+</head>
+<body onload='map_load()'>
+<div id='preview_code' class='preview'></div>
+<div id='preview_char' class='preview'></div>
+<h1>{$charmap_title}:</h1>
+<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
+</select>
+<div id='char_list'>
+
+</div>
+
+
+
+</body>
+</html>
diff --git a/src/lab/exp9/lab.html b/src/lab/exp9/lab.html
index 6c28b42e..e1545fad 100755
--- a/src/lab/exp9/lab.html
+++ b/src/lab/exp9/lab.html
@@ -1,293 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Permutation </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr/>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
-</form></div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		
-			
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Permutation </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+ <input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value='0'>Hint Level 0</option>
+	<option value='1'>Hint Level 1</option>
+	<option value='2'>Hint Level 2</option>
+	<option value='3'>Hint Level 3</option>
+	<option value='4'>Hint Level 4</option>
+   </select>
+   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp9/lab_test.html b/src/lab/exp9/lab_test.html
index 72194efe..12c13149 100755
--- a/src/lab/exp9/lab_test.html
+++ b/src/lab/exp9/lab_test.html
@@ -1,151 +1,148 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="SubmissionID" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp9/prob_desc.html b/src/lab/exp9/prob_desc.html
index a1d5b741..3457ba01 100755
--- a/src/lab/exp9/prob_desc.html
+++ b/src/lab/exp9/prob_desc.html
@@ -1,61 +1,57 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
-						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
-						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
-						Output:6<br/>
-						Input: 1 2 3 4 5 6 7 8<br/>
-						Output: 1<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
-	positive integers (each &lt;=10^9).
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br/>
-						Output:6<br/>
-						Input: 6 <br/>
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						</li>
-
-			</ol></div>
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
+						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
+						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
+						Output:6<br />
+						Input: 1 2 3 4 5 6 7 8<br />
+						Output: 1<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
+	positive integers (each &lt=10^9).
+			<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br />
+						Output:6<br />
+						Input: 6 <br />
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						</li>
+
+			</div>
+	</body>
+</html>
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index 5cf515c3..08bc937f 100755
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -1,88 +1,84 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
-						</p><ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						<p></p> 
-						
-				</li></ol></div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+		<title>OJ</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body>
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
+						<ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br />Here we present two problems based on factorials.<br />
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:2<br />
+						Input: 52<br />
+						Output: 68<br/>
+						<hr />
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
+						<center><b>Input Specification</b></center><br />
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
+						<center><b>Output Specification</b></center><br />
+						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
+						<center><b>Sample Input and Output</b></center><br />
+						Input: 5<br />
+						Output:1<br />
+						Input: 25<br />
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						</p> 
+						
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/exp9/test.html b/src/lab/exp9/test.html
index a1c2fb03..21c00d53 100755
--- a/src/lab/exp9/test.html
+++ b/src/lab/exp9/test.html
@@ -1,199 +1,196 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
-	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
-<select id="codeId" name="language">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
-                    
-    
-
-<select id="probId" name="codeId">
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		
-	</form>		
-
-	
-
-
-</body></html>
\ No newline at end of file
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
+<head>
+	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body>
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
+		</textarea>
+	</fieldset>
+<br/>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
+<select name="language" id="codeId">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
+
+<select name="codeId"  id="probId" >
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input type="hidden" name="hintC" id="hintCount" value="0"/>
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Compile" name="type"/>
+ &nbsp; &nbsp; &nbsp; 
+ <input type="submit" value="Run" name="type"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		</div>
+	</form>		
+
+	
+</body>
+</html>
diff --git a/src/lab/exp9/theory.html b/src/lab/exp9/theory.html
index c33b13f7..aa5aa2d7 100755
--- a/src/lab/exp9/theory.html
+++ b/src/lab/exp9/theory.html
@@ -1,15 +1,12 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html>
+	<head>
+		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body>
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -35,20 +32,22 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p></p><h3>Problem 1</h3>
-<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p><h3>Problem 1</h3>
+<pre>
+This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-<p></p>
-<p></p><h3>Problem 2</h3>
-<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+</p>
+<p><h3>Problem 2</h3>
+<pre>
+	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -61,17 +60,16 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
+		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		
-	
-
-</body></html>
\ No newline at end of file
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		</div>
+	</body>
+</html>
diff --git a/src/lab/expPh1/contenttempplate.html b/src/lab/expPh1/contenttempplate.html
index b1ebd0eb..0bfae78c 100755
--- a/src/lab/expPh1/contenttempplate.html
+++ b/src/lab/expPh1/contenttempplate.html
@@ -1,20 +1,17 @@
 <!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
-  <header class="default" id="experiment-header">
+  <header id="experiment-header" class="default">
   
-    <div class="logo" id="experiment-header-logo">
-      <img src="../images/logo.jpg"/>
+    <div id="experiment-header-logo" class="logo">
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <a href="../index.html">Problem Solving Lab</a>	
     </div>
 
@@ -24,14 +21,14 @@
 
   <article id="experiment-article">
   
-     <div class="breadcrumb" id="experiment-article-breadcrumb">
+     <div id="experiment-article-breadcrumb" class="breadcrumb">
      </div>
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         Heading
       </header>
 
-      <nav class="default" id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" class="default">
         <ul id="experiment-article-navigation-menu">
         </ul>
       </nav>
@@ -40,15 +37,18 @@
 
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
-	    <img src="../images/introduction.jpg"/>
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
          
         </div>
       </section>
@@ -56,16 +56,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
          <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
 	</p>
@@ -77,16 +80,19 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           
 	    <p>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
@@ -97,16 +103,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
 	<p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p> 
@@ -118,59 +127,63 @@
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -179,21 +192,24 @@
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows.
 	      </p>
 		<p>
-</p><ol>
+<ol>
 <li> Write the code for the problem or upload a solution. </li>
 <li> Press the 'i' button get info about the problem which you have to solve.</li>
 <li> If you are finding it difficult to solve the solution, then you can use the 4 levels of incresingly descriptive hints, but try to use minimum number of hints.</li>
@@ -202,23 +218,26 @@
 <li> To execute the code and see output, press the execute button. </li>
 </ol>
 		<p>
-	  </p></div>
+	  </div>
 	
         </section>
 			
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -246,7 +265,7 @@
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -254,59 +273,20 @@
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/expPh1/default.html b/src/lab/expPh1/default.html
index c5416707..9a7ea39f 100644
--- a/src/lab/expPh1/default.html
+++ b/src/lab/expPh1/default.html
@@ -1,27 +1,26 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header">
+  <header id="experiment-header" >
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -43,7 +42,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -53,7 +52,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" >
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -69,20 +68,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -105,7 +107,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img src="../images/Pendulum.JPG" alt="pendulum">
         </div>
 
 
@@ -114,21 +116,24 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div class="content" id="experiment-article-section-2-content">
+        <div id="experiment-article-section-2-content" 
+        class="content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -138,10 +143,11 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  &tau;  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   &alpha;  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" 
+          href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -149,19 +155,20 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sin&theta; &asymp; &theta;).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" 
+          href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
-          &amp;omega=(g/l)<sup>1/2</sup> is the 
+          where, &theta;(t) is the history of oscillation, 
+          &theta;<sub>0</sub> is the initial angle, 
+          &omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -171,16 +178,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -199,18 +209,21 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf" /> 
           </p>
         </div>
 
@@ -218,16 +231,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -247,7 +263,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a class="more" href="cITe/Documents/eerc/
+              <a  class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -267,59 +283,63 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -328,16 +348,19 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -348,16 +371,19 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -385,7 +411,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -393,59 +419,20 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/expPh1/newcontenttempalte.html b/src/lab/expPh1/newcontenttempalte.html
index 8230aaee..80d19855 100755
--- a/src/lab/expPh1/newcontenttempalte.html
+++ b/src/lab/expPh1/newcontenttempalte.html
@@ -1,25 +1,26 @@
 <!-- This file needs to be edited by the lab developer to suit
-the requirements of their lab in particular.--><!-- Add class="default" to include any element as it is
+the requirements of their lab in particular.-->
+
+<!-- Add class="default" to include any element as it is
 specified in default.html. 
 Do not include class="default" to the elements that you want to
-edit --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+edit -->
+
+<!DOCTYPE html>
+<html>
+<head></head>
+<body>
 
 <div id="experiment"> 
 
-  <header class="default" id="experiment-header">
+  <header id="experiment-header" class="default">
   
-    <div class="logo" id="experiment-header-logo">
+    <div id="experiment-header-logo" class="logo">
      
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg" />
     </div>
 
-    <div class="heading" id="experiment-header-heading">
+    <div id="experiment-header-heading" class="heading">
      
       <a href="../index.html">Problem Solving Lab</a>	
     </div>
@@ -33,17 +34,17 @@
   <article id="experiment-article">
   
     
-     <div class="breadcrumb" id="experiment-article-breadcrumb">
+     <div id="experiment-article-breadcrumb" class="breadcrumb">
      </div>
     
-      <header class="heading" id="experiment-article-heading">
+      <header id="experiment-article-heading" class="heading">
        
      HEADING
         
       </header>
 
     
-      <nav class="default" id="experiment-article-navigation">
+      <nav id="experiment-article-navigation" class="default">
         <ul id="experiment-article-navigation-menu">
         
         </ul>
@@ -56,20 +57,23 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div class="icon" id="experiment-article-section-1-icon">
+          <div id="experiment-article-section-1-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg" />
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div class="heading" id="experiment-article-section-1-heading">
+          <div id="experiment-article-section-1-heading" 
+          class="heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div class="content" id="experiment-article-section-1-content">	
+          <div id="experiment-article-section-1-content" 
+          class="content">	
             
 
 
@@ -81,17 +85,20 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div class="icon" id="experiment-article-section-2-icon">
+        <div id="experiment-article-section-2-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg" />
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div class="heading" id="experiment-article-section-2-heading">
+        <div id="experiment-article-section-2-heading" 
+        class="heading">
           Theory
         </div>
-       <div class="content" id="experiment-article-section-2-content">
+       <div id="experiment-article-section-2-content" 
+        class="content">
 
 
 
@@ -102,16 +109,19 @@
 
       <section id="experiment-article-section-3">
         
-        <div class="icon" id="experiment-article-section-3-icon">
+        <div id="experiment-article-section-3-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg" />
 	</div>
      
-        <div class="heading" id="experiment-article-section-3-heading">
+        <div id="experiment-article-section-3-heading" 
+        class="heading">
           Objective
         </div>
 
-        <div class="content" id="experiment-article-section-3-content">
+        <div id="experiment-article-section-3-content" 
+        class="content">
 
         <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
@@ -125,16 +135,19 @@
 
       <section id="experiment-article-section-4">
 
-        <div class="icon" id="experiment-article-section-4-icon">
+        <div id="experiment-article-section-4-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-4-heading">
+        <div id="experiment-article-section-4-heading" 
+        class="heading">
           Experiment
         </div>
 
-        <div class="content" id="experiment-article-section-4-content">
+        <div id="experiment-article-section-4-content" 
+        class="content">
  <p>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
          </p>
@@ -145,16 +158,19 @@
 
       <section id="experiment-article-section-5">
    
-        <div class="icon" id="experiment-article-section-5-icon">
+        <div id="experiment-article-section-5-icon" 
+        class="icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg" />
 	</div>
 
-        <div class="heading" id="experiment-article-section-5-heading">
+        <div id="experiment-article-section-5-heading" 
+        class="heading">
           Manual
         </div>
 
-        <div class="content" id="experiment-article-section-5-content">
+        <div id="experiment-article-section-5-content" 
+        class="content">
 
 	<p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
@@ -166,59 +182,63 @@
 
         <section id="experiment-article-section-6">
       
-          <div class="icon" id="experiment-article-section-6-icon">
+          <div id="experiment-article-section-6-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-6-heading">
+          <div id="experiment-article-section-6-heading" 
+          class="heading">
             Quizzes
           </div>
 
-          <div class="content" id="experiment-article-section-6-content">
+          <div id="experiment-article-section-6-content" 
+          class="content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
+              is called Time Period of the oscillator. <br> 
+              <input type="radio" name="q1" id="q1" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q1" id="q1" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
+              conditions.<br> 
+              <input type="radio" name="q2" id="q2" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q2" id="q2"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
+              conditions. <br> 
+              <input type="radio" name="q3" id="q3" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q3" id="q3"value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
+              Value of time period depends on mass. <br> 
+              <input type="radio" name="q4" id="q4" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q4" id="q4" value="0">
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
+              oscillator. <br> 
+              <input type="radio" name="q5" id="q5" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input type="radio" name="q5" id="q5"value="0">
                 <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              <input type="submit" value="Submit Answers" 
+                class="button" />
             </p>
 
           </div>
@@ -227,21 +247,24 @@
 
         <section id="experiment-article-section-7">
 	  
-          <div class="icon" id="experiment-article-section-7-icon">
+          <div id="experiment-article-section-7-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg" />
 	  </div>
 	
-          <div class="heading" id="experiment-article-section-7-heading">
+          <div id="experiment-article-section-7-heading" 
+          class="heading">
 	    Procedure
 	  </div>
 	
-          <div class="content" id="experiment-article-section-7-content">
+          <div id="experiment-article-section-7-content" 
+          class="content">
 	    <p>
 	      Procedure for the experiment is as follows.
 	    </p>
 		<p>
-</p><ol>
+<ol>
 <li> Write the code for the problem or upload a solution. </li>
 <li> Press the 'i' button get info about the problem which you have to solve.</li>
 <li> If you are finding it difficult to solve the solution, then you can use the 4 levels of incresingly descriptive hints, but try to use minimum number of hints.</li>
@@ -251,23 +274,26 @@
 </ol>
 		<p>
 
-	  </p></div>
+	  </div>
 	
         </section>
 			
 		
         <section id="experiment-article-section-8">
    
-          <div class="icon" id="experiment-article-section-8-icon">
+          <div id="experiment-article-section-8-icon" 
+          class="icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg" />
 	  </div>
 
-          <div class="heading" id="experiment-article-section-8-heading">
+          <div id="experiment-article-section-8-heading" 
+          class="heading">
             Further Readings
           </div>
 
-          <div class="content" id="experiment-article-section-8-content">
+          <div id="experiment-article-section-8-content" 
+          class="content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -295,7 +321,7 @@
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside class="default" id="lab-article-sidebar">
+    <aside id="lab-article-sidebar" class="default">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -303,59 +329,20 @@
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer class="default" id="footer"><div class="footer-top" id="contact">
-  <div class="container">
-    <div class="row">
-      <div class="col-lg-4 col-md-6">
-        <h4>Community Links</h4>
-        <p>
-	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
-	</p>
-        <p>
-	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
-	</p>
-        <p>
-	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
-	</p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-        <h4>Contact Us</h4>
-	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
-	<p> <strong>Email:</strong> support@vlab.co.in </p>
-      </div>
-      <div class="col-lg-4 col-md-6">
-	<h4>Follow Us</h4>
-	<div class="social-links">
-	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
-	    <i class="fa fa-twitter"></i>
-	  </a>
-	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
-	    <i class="fa fa-facebook"></i>
-	  </a>
-	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
-	    <i class="fa fa-youtube"></i>
-	  </a>
-	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
-	    <i class="fa fa-linkedin"></i>
-	  </a>
-	</div>
-      </div>
-    </div>
-  </div>
-</div>
-</footer>
+    <footer id="lab-article-footer" class="default">
+      <!-- Put the content that you want to appear here -->
+    </footer>
 
   </article>
 
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer class="default" id="lab-footer">
+  <footer id="lab-footer" class="default">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-
-
-</body></html>
\ No newline at end of file
+</body>
+</html>
diff --git a/src/lab/exp_template.php b/src/lab/exp_template.php
index 6af1ba63..de80cfc5 100644
--- a/src/lab/exp_template.php
+++ b/src/lab/exp_template.php
@@ -2,8 +2,6 @@
 <html lang="en" class="no-js">
 
 <head>
-<script class='gtm'>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-W59SWTR');</script>
-
   
   <!--It is a good practice to declare the encoding even for an 
   English Web site. One function of this is to tag is to "reset"

From 35321a10f97d0d309d8c494b70b59e4fd6641c74 Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Fri, 3 Jul 2020 00:49:07 +0530
Subject: [PATCH 04/22] update makefile to modify patch analytics

---
 src/makefile | 6 ------
 1 file changed, 6 deletions(-)

diff --git a/src/makefile b/src/makefile
index 54b71de8..4dc66441 100644
--- a/src/makefile
+++ b/src/makefile
@@ -9,11 +9,5 @@ clean:
 	rm -rf ${build-dir}
 
 patch-analytics:
-	git clone https://github.com/virtual-labs/vlabs-analytics.git
-	cp vlabs-analytics/gtm-patcher.py ../scripts/.
-	cp vlabs-analytics/patch-analytics.sh ../scripts/.
 	chmod +x ../scripts/patch-analytics.sh 
 	../scripts/patch-analytics.sh
-	rm -rf vlabs-analytics
-	rm -rf ../scripts/patch-analytics.sh
-	rm -rf ../scripts/gtm-patcher.py

From 7a6e77da2a29257a0fa40d41b11d53060e0bf3bd Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Fri, 3 Jul 2020 08:17:14 +0530
Subject: [PATCH 05/22] fix theory and intro

---
 scripts/gtm-patcher.py                        | 110 ++++
 scripts/patch-analytics.sh                    |  22 +
 src/lab/Courses Aligned.html                  |   2 +-
 src/lab/Feedback.html                         |   2 +-
 src/lab/Introduction.html                     |   2 +-
 src/lab/List of experiments.html              |   2 +-
 src/lab/Prerequisites.html                    |   2 +-
 src/lab/Target Audience.html                  |   2 +-
 src/lab/default.html                          |   2 +-
 src/lab/exp1/Experiment.html                  |   2 +-
 src/lab/exp1/Feedback.html                    |   2 +-
 src/lab/exp1/Further Readings.html            |   2 +-
 src/lab/exp1/Hints1/Hint_0.html               |   8 +-
 src/lab/exp1/Hints1/Hint_1.html               |  15 +-
 src/lab/exp1/Hints1/Hint_2.html               |  15 +-
 src/lab/exp1/Hints1/Hint_3.html               |  15 +-
 src/lab/exp1/Hints1/Hint_4.html               |  11 +-
 src/lab/exp1/Hints2/Hint_0.html               |   8 +-
 src/lab/exp1/Hints2/Hint_1.html               |  14 +-
 src/lab/exp1/Hints2/Hint_2.html               |  14 +-
 src/lab/exp1/Hints2/Hint_3.html               |  16 +-
 src/lab/exp1/Hints2/Hint_4.html               |  12 +-
 src/lab/exp1/Introduction.html                | 192 +++---
 src/lab/exp1/Manual.html                      |   2 +-
 src/lab/exp1/Objective.html                   |   2 +-
 src/lab/exp1/Procedure.html                   |   2 +-
 src/lab/exp1/Quizzes.html                     |   2 +-
 src/lab/exp1/Theory.html                      | 208 +++----
 src/lab/exp1/Untitled-1.html                  | 242 ++++++++
 src/lab/exp1/bk_lab.html                      | 577 ++++++++---------
 src/lab/exp1/bkcontent.html                   |  91 +--
 src/lab/exp1/bkindex.html                     | 186 +++---
 src/lab/exp1/default.html                     | 191 +++---
 .../exp1/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp1/furtherReadings.html             | 172 ++---
 src/lab/exp1/indexmar.html                    |  30 +-
 src/lab/exp1/lab.html                         | 581 ++++++++---------
 src/lab/exp1/lab_test.html                    | 299 ++++-----
 src/lab/exp1/newindex.html                    |  30 +-
 src/lab/exp1/objective.html                   | 114 ++--
 src/lab/exp1/previndex.html                   | 186 +++---
 src/lab/exp1/prevlab.html                     | 577 ++++++++---------
 src/lab/exp1/prob_desc.html                   | 132 ++--
 src/lab/exp1/quiz.html                        | 172 ++---
 src/lab/exp1/realcontent.html                 |  93 +--
 src/lab/exp1/submission040361394.html         |  87 +--
 src/lab/exp1/submission082188330.html         |  88 +--
 src/lab/exp1/submission082365658.html         |  87 +--
 src/lab/exp1/submission100779049.html         |  89 +--
 src/lab/exp1/submission111383690.html         |  88 +--
 src/lab/exp1/submission155196644.html         |  87 +--
 src/lab/exp1/submission192297025.html         |  96 +--
 src/lab/exp1/submission246138070.html         |  88 +--
 src/lab/exp1/submission261786162.html         |  92 +--
 src/lab/exp1/submission293575265.html         |  88 +--
 src/lab/exp1/submission341502595.html         |  86 +--
 src/lab/exp1/submission374353207.html         |  94 +--
 src/lab/exp1/submission394922362.html         |  87 +--
 src/lab/exp1/submission398367358.html         |  96 +--
 src/lab/exp1/submission447675640.html         |  88 +--
 src/lab/exp1/submission451578265.html         |  94 +--
 src/lab/exp1/submission465083441.html         |  88 +--
 src/lab/exp1/submission535736206.html         |  94 +--
 src/lab/exp1/submission612317503.html         |  87 +--
 src/lab/exp1/submission851076195.html         |  86 +--
 src/lab/exp1/submission932738197.html         |  87 +--
 src/lab/exp1/submission958166466.html         |  88 +--
 src/lab/exp1/test.html                        | 395 ++++++------
 src/lab/exp1/theory.html                      |  58 +-
 src/lab/exp10/Experiment.html                 |   2 +-
 src/lab/exp10/Feedback.html                   |   2 +-
 src/lab/exp10/Further Readings.html           |   2 +-
 src/lab/exp10/Hints1/Hint_0.html              |   8 +-
 src/lab/exp10/Hints1/Hint_1.html              |  18 +-
 src/lab/exp10/Hints1/Hint_2.html              |  24 +-
 src/lab/exp10/Hints1/Hint_3.html              |  18 +-
 src/lab/exp10/Hints1/Hint_4.html              |  12 +-
 src/lab/exp10/Hints2/Hint_0.html              |   8 +-
 src/lab/exp10/Hints2/Hint_1.html              |  16 +-
 src/lab/exp10/Hints2/Hint_2.html              |  20 +-
 src/lab/exp10/Hints2/Hint_3.html              |  14 +-
 src/lab/exp10/Hints2/Hint_4.html              |  10 +-
 src/lab/exp10/Introduction.html               |   2 +-
 src/lab/exp10/Manual.html                     |   2 +-
 src/lab/exp10/Objective.html                  |   2 +-
 src/lab/exp10/Procedure.html                  |   2 +-
 src/lab/exp10/Quizzes.html                    |   2 +-
 src/lab/exp10/Theory.html                     | 179 +++---
 src/lab/exp10/default.html                    | 191 +++---
 .../edit_area/plugins/charmap/popup.html      |  51 +-
 src/lab/exp10/furtherReadings.html            |   2 +-
 src/lab/exp10/lab.html                        | 585 +++++++++---------
 src/lab/exp10/lab_test.html                   | 299 ++++-----
 src/lab/exp10/objective.html                  |   2 +-
 src/lab/exp10/prob_desc.html                  | 118 ++--
 src/lab/exp10/quiz.html                       | 172 ++---
 src/lab/exp10/submission014407413.html        |   2 +-
 src/lab/exp10/submission041099922.html        |   2 +-
 src/lab/exp10/submission069210435.html        |   2 +-
 src/lab/exp10/submission081503699.html        |   2 +-
 src/lab/exp10/submission097709078.html        |   2 +-
 src/lab/exp10/submission132342816.html        |   2 +-
 src/lab/exp10/submission136616632.html        |   2 +-
 src/lab/exp10/submission139577371.html        |   2 +-
 src/lab/exp10/submission150766206.html        |   2 +-
 src/lab/exp10/submission154563970.html        |   2 +-
 src/lab/exp10/submission197741129.html        |   2 +-
 src/lab/exp10/submission225823924.html        |   2 +-
 src/lab/exp10/submission248914412.html        |   2 +-
 src/lab/exp10/submission294791598.html        |   2 +-
 src/lab/exp10/submission298808864.html        |   2 +-
 src/lab/exp10/submission320709922.html        |   2 +-
 src/lab/exp10/submission325134226.html        |   2 +-
 src/lab/exp10/submission327800652.html        |   2 +-
 src/lab/exp10/submission341467322.html        |   2 +-
 src/lab/exp10/submission385914953.html        |   2 +-
 src/lab/exp10/submission389808530.html        |   2 +-
 src/lab/exp10/submission389904397.html        |   2 +-
 src/lab/exp10/submission451338786.html        |   2 +-
 src/lab/exp10/submission486326983.html        |   2 +-
 src/lab/exp10/submission487105672.html        |   2 +-
 src/lab/exp10/submission498781684.html        |   2 +-
 src/lab/exp10/submission528504976.html        |   2 +-
 src/lab/exp10/submission536961559.html        |   2 +-
 src/lab/exp10/submission616671535.html        |   2 +-
 src/lab/exp10/submission623705546.html        |   2 +-
 src/lab/exp10/submission627193306.html        |   2 +-
 src/lab/exp10/submission635825416.html        |   2 +-
 src/lab/exp10/submission690124106.html        |   2 +-
 src/lab/exp10/submission741930076.html        |   2 +-
 src/lab/exp10/submission764801824.html        |   2 +-
 src/lab/exp10/submission786099001.html        |   2 +-
 src/lab/exp10/submission810103484.html        |   2 +-
 src/lab/exp10/submission876847729.html        |   2 +-
 src/lab/exp10/submission924187431.html        |   2 +-
 src/lab/exp10/submission925894823.html        |   2 +-
 src/lab/exp10/submission936950104.html        |   2 +-
 src/lab/exp10/test.html                       | 395 ++++++------
 src/lab/exp10/theory.html                     |  52 +-
 src/lab/exp2/Experiment.html                  |   2 +-
 src/lab/exp2/Feedback.html                    |   2 +-
 src/lab/exp2/Further Readings.html            |   2 +-
 src/lab/exp2/Hints1/Hint_0.html               |   7 +-
 src/lab/exp2/Hints1/Hint_1.html               |  16 +-
 src/lab/exp2/Hints1/Hint_2.html               |  16 +-
 src/lab/exp2/Hints1/Hint_3.html               |  18 +-
 src/lab/exp2/Hints1/Hint_4.html               |  10 +-
 src/lab/exp2/Hints1/Hint_5.html               |  10 +-
 src/lab/exp2/Hints2/Hint_0.html               |   8 +-
 src/lab/exp2/Hints2/Hint_1.html               |  14 +-
 src/lab/exp2/Hints2/Hint_2.html               |  14 +-
 src/lab/exp2/Hints2/Hint_3.html               |  14 +-
 src/lab/exp2/Hints2/Hint_4.html               |  10 +-
 src/lab/exp2/Hints2/Hint_5.html               |  10 +-
 src/lab/exp2/Introduction.html                |   2 +-
 src/lab/exp2/Manual.html                      |   2 +-
 src/lab/exp2/Objective.html                   |   2 +-
 src/lab/exp2/Procedure.html                   |   2 +-
 src/lab/exp2/Quizzes.html                     |   2 +-
 src/lab/exp2/bk_index.html                    | 194 +++---
 src/lab/exp2/default.html                     | 191 +++---
 .../exp2/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp2/furtherReadings.html             | 172 ++---
 src/lab/exp2/lab.html                         | 585 +++++++++---------
 src/lab/exp2/lab_test.html                    | 299 ++++-----
 src/lab/exp2/objective.html                   |   2 +-
 src/lab/exp2/previndex.html                   | 194 +++---
 src/lab/exp2/prob_desc.html                   | 124 ++--
 src/lab/exp2/quiz.html                        | 172 ++---
 src/lab/exp2/submission185550271.html         |   2 +-
 src/lab/exp2/submission197174454.html         |   2 +-
 src/lab/exp2/submission211548030.html         |   2 +-
 src/lab/exp2/submission457897134.html         |   2 +-
 src/lab/exp2/submission502952122.html         |   2 +-
 src/lab/exp2/submission528085955.html         |   2 +-
 src/lab/exp2/submission604289628.html         |   2 +-
 src/lab/exp2/submission682851925.html         |   2 +-
 src/lab/exp2/submission785097604.html         |   2 +-
 src/lab/exp2/submission900840518.html         |   2 +-
 src/lab/exp2/submission947863660.html         |   2 +-
 src/lab/exp2/submission972551679.html         |   2 +-
 src/lab/exp2/submission993675339.html         |   2 +-
 src/lab/exp2/test.html                        |   2 +-
 src/lab/exp2/theory.html                      |   2 +-
 src/lab/exp3/Experiment.html                  |   2 +-
 src/lab/exp3/Feedback.html                    |   2 +-
 src/lab/exp3/Further Readings.html            |   2 +-
 src/lab/exp3/Hints1/Hint_0.html               |   8 +-
 src/lab/exp3/Hints1/Hint_1.html               |  14 +-
 src/lab/exp3/Hints1/Hint_2.html               |  14 +-
 src/lab/exp3/Hints1/Hint_3.html               |  16 +-
 src/lab/exp3/Hints1/Hint_4.html               |  10 +-
 src/lab/exp3/Hints2/Hint_0.html               |   8 +-
 src/lab/exp3/Hints2/Hint_1.html               |  18 +-
 src/lab/exp3/Hints2/Hint_2.html               |  18 +-
 src/lab/exp3/Hints2/Hint_3.html               |  18 +-
 src/lab/exp3/Hints2/Hint_4.html               |  12 +-
 src/lab/exp3/Hints2/Hint_5.html               |  12 +-
 src/lab/exp3/Introduction.html                |   2 +-
 src/lab/exp3/Manual.html                      |   2 +-
 src/lab/exp3/Objective.html                   |   2 +-
 src/lab/exp3/Procedure.html                   |   2 +-
 src/lab/exp3/Quizzes.html                     |   2 +-
 src/lab/exp3/Theory.html                      | 277 ++++-----
 src/lab/exp3/default.html                     | 191 +++---
 .../exp3/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp3/furtherReadings.html             |   2 +-
 src/lab/exp3/lab.html                         | 585 +++++++++---------
 src/lab/exp3/lab_test.html                    | 299 ++++-----
 src/lab/exp3/objective.html                   |   2 +-
 src/lab/exp3/prob_desc.html                   | 141 ++---
 src/lab/exp3/quiz.html                        | 172 ++---
 src/lab/exp3/submission055278960.html         |   2 +-
 src/lab/exp3/submission212453558.html         |   2 +-
 src/lab/exp3/submission263772451.html         |   2 +-
 src/lab/exp3/submission337734160.html         |   2 +-
 src/lab/exp3/submission556366744.html         |   2 +-
 src/lab/exp3/submission577197253.html         |   2 +-
 src/lab/exp3/submission586661222.html         |   2 +-
 src/lab/exp3/submission600928592.html         |   2 +-
 src/lab/exp3/submission607839095.html         |   2 +-
 src/lab/exp3/submission705623947.html         |   2 +-
 src/lab/exp3/submission737740138.html         |   2 +-
 src/lab/exp3/submission743135170.html         |   2 +-
 src/lab/exp3/submission807423932.html         |   2 +-
 src/lab/exp3/submission812920506.html         |   2 +-
 src/lab/exp3/submission971228782.html         |   2 +-
 src/lab/exp3/test.html                        | 395 ++++++------
 src/lab/exp3/theory.html                      |  50 +-
 src/lab/exp4/Experiment.html                  |   2 +-
 src/lab/exp4/Feedback.html                    |   2 +-
 src/lab/exp4/Further Readings.html            |   2 +-
 src/lab/exp4/Hints1/Hint_1.html               |  16 +-
 src/lab/exp4/Hints1/Hint_2.html               |  16 +-
 src/lab/exp4/Hints1/Hint_3.html               |  18 +-
 src/lab/exp4/Hints1/Hint_4.html               |  10 +-
 src/lab/exp4/Hints2/Hint_0.html               |   8 +-
 src/lab/exp4/Hints2/Hint_1.html               |  18 +-
 src/lab/exp4/Hints2/Hint_2.html               |  18 +-
 src/lab/exp4/Hints2/Hint_3.html               |  10 +-
 src/lab/exp4/Hints2/Hint_4.html               |  10 +-
 src/lab/exp4/Introduction.html                |   2 +-
 src/lab/exp4/Manual.html                      |   2 +-
 src/lab/exp4/Objective.html                   |   2 +-
 src/lab/exp4/Procedure.html                   |   2 +-
 src/lab/exp4/Quizzes.html                     |   2 +-
 src/lab/exp4/Theory.html                      | 283 ++++-----
 src/lab/exp4/default.html                     | 191 +++---
 .../exp4/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp4/furtherReadings.html             |   2 +-
 src/lab/exp4/lab.html                         | 585 +++++++++---------
 src/lab/exp4/lab_test.html                    | 299 ++++-----
 src/lab/exp4/objective.html                   |   2 +-
 src/lab/exp4/prob_desc.html                   |  94 +--
 src/lab/exp4/quiz.html                        | 172 ++---
 src/lab/exp4/submission010965066.html         |   2 +-
 src/lab/exp4/submission099031407.html         |   2 +-
 src/lab/exp4/submission537352138.html         |   2 +-
 src/lab/exp4/submission575172690.html         |   2 +-
 src/lab/exp4/submission598456765.html         |   2 +-
 src/lab/exp4/submission822434122.html         |   2 +-
 src/lab/exp4/submission902808767.html         |   2 +-
 src/lab/exp4/test.html                        | 395 ++++++------
 src/lab/exp4/theory.html                      |  74 +--
 src/lab/exp5/Experiment.html                  |   2 +-
 src/lab/exp5/Feedback.html                    |   2 +-
 src/lab/exp5/Further Readings.html            |   2 +-
 src/lab/exp5/Hints1/Hint_0.html               |   8 +-
 src/lab/exp5/Hints1/Hint_1.html               |  16 +-
 src/lab/exp5/Hints1/Hint_2.html               |  14 +-
 src/lab/exp5/Hints1/Hint_3.html               |  12 +-
 src/lab/exp5/Hints1/Hint_4.html               |  14 +-
 src/lab/exp5/Hints2/Hint_0.html               |   8 +-
 src/lab/exp5/Hints2/Hint_1.html               |  16 +-
 src/lab/exp5/Hints2/Hint_2.html               |  18 +-
 src/lab/exp5/Hints2/Hint_3.html               |  18 +-
 src/lab/exp5/Hints2/Hint_4.html               |  10 +-
 src/lab/exp5/Introduction.html                |   2 +-
 src/lab/exp5/Manual.html                      |   2 +-
 src/lab/exp5/Objective.html                   |   2 +-
 src/lab/exp5/Procedure.html                   |   2 +-
 src/lab/exp5/Quizzes.html                     |   2 +-
 src/lab/exp5/Theory.html                      | 210 +++----
 src/lab/exp5/default.html                     | 191 +++---
 .../exp5/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp5/furtherReadings.html             |   2 +-
 src/lab/exp5/lab.html                         | 583 ++++++++---------
 src/lab/exp5/lab_test.html                    | 299 ++++-----
 src/lab/exp5/objective.html                   |   2 +-
 src/lab/exp5/prob_desc.html                   | 118 ++--
 src/lab/exp5/quiz.html                        | 172 ++---
 src/lab/exp5/submission096751967.html         |   2 +-
 src/lab/exp5/submission109007246.html         |   2 +-
 src/lab/exp5/submission237047629.html         |   2 +-
 src/lab/exp5/submission533718369.html         |   2 +-
 src/lab/exp5/test.html                        | 395 ++++++------
 src/lab/exp5/theory.html                      |  58 +-
 src/lab/exp6/Experiment.html                  |   2 +-
 src/lab/exp6/Feedback.html                    |   2 +-
 src/lab/exp6/Further Readings.html            |   2 +-
 src/lab/exp6/Hints1/Hint_0.html               |   8 +-
 src/lab/exp6/Hints1/Hint_1.html               |  18 +-
 src/lab/exp6/Hints1/Hint_2.html               |  18 +-
 src/lab/exp6/Hints1/Hint_3.html               |  18 +-
 src/lab/exp6/Hints1/Hint_4.html               |  10 +-
 src/lab/exp6/Hints1/Hint_5.html               |  10 +-
 src/lab/exp6/Hints2/Hint_0.html               |   8 +-
 src/lab/exp6/Hints2/Hint_1.html               |  14 +-
 src/lab/exp6/Hints2/Hint_2.html               |  22 +-
 src/lab/exp6/Hints2/Hint_3.html               |  14 +-
 src/lab/exp6/Hints2/Hint_4.html               |  12 +-
 src/lab/exp6/Hints2/Hint_5.html               |  12 +-
 src/lab/exp6/Introduction.html                |   2 +-
 src/lab/exp6/Manual.html                      |   2 +-
 src/lab/exp6/Objective.html                   |   2 +-
 src/lab/exp6/Procedure.html                   |   2 +-
 src/lab/exp6/Quizzes.html                     |   2 +-
 src/lab/exp6/Theory.html                      | 207 +++----
 src/lab/exp6/default.html                     | 191 +++---
 .../exp6/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp6/furtherReadings.html             |   2 +-
 src/lab/exp6/lab.html                         | 581 ++++++++---------
 src/lab/exp6/lab_test.html                    | 299 ++++-----
 src/lab/exp6/objective.html                   |   2 +-
 src/lab/exp6/prob_desc.html                   | 126 ++--
 src/lab/exp6/quiz.html                        | 172 ++---
 src/lab/exp6/submission078498950.html         |   2 +-
 src/lab/exp6/submission376667958.html         |   2 +-
 src/lab/exp6/submission416502186.html         |   2 +-
 src/lab/exp6/submission667231208.html         |   2 +-
 src/lab/exp6/submission830260742.html         |   2 +-
 src/lab/exp6/test.html                        | 395 ++++++------
 src/lab/exp6/theory.html                      |  50 +-
 src/lab/exp7/Experiment.html                  |   2 +-
 src/lab/exp7/Feedback.html                    |   2 +-
 src/lab/exp7/Further Readings.html            |   2 +-
 src/lab/exp7/Hints1/Hint_0.html               |   8 +-
 src/lab/exp7/Hints1/Hint_1.html               |  14 +-
 src/lab/exp7/Hints1/Hint_2.html               |  22 +-
 src/lab/exp7/Hints1/Hint_3.html               |  22 +-
 src/lab/exp7/Hints1/Hint_4.html               |  70 ++-
 src/lab/exp7/Hints2/Hint_0.html               |   8 +-
 src/lab/exp7/Hints2/Hint_1.html               |  14 +-
 src/lab/exp7/Hints2/Hint_2.html               |  14 +-
 src/lab/exp7/Hints2/Hint_3.html               |  10 +-
 src/lab/exp7/Hints2/Hint_4.html               |  10 +-
 src/lab/exp7/Introduction.html                |   2 +-
 src/lab/exp7/Manual.html                      |   2 +-
 src/lab/exp7/Objective.html                   |   2 +-
 src/lab/exp7/Procedure.html                   |   2 +-
 src/lab/exp7/Quizzes.html                     |   2 +-
 src/lab/exp7/Theory.html                      | 187 +++---
 src/lab/exp7/default.html                     | 191 +++---
 .../exp7/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp7/furtherReadings.html             |   2 +-
 src/lab/exp7/lab.html                         | 583 ++++++++---------
 src/lab/exp7/lab_test.html                    | 299 ++++-----
 src/lab/exp7/objective.html                   |   2 +-
 src/lab/exp7/prob_desc.html                   |  98 +--
 src/lab/exp7/quiz.html                        | 172 ++---
 src/lab/exp7/submission190225116.html         |   2 +-
 src/lab/exp7/submission227837884.html         |   2 +-
 src/lab/exp7/submission419966738.html         |   2 +-
 src/lab/exp7/submission491787357.html         |   2 +-
 src/lab/exp7/test.html                        | 395 ++++++------
 src/lab/exp7/theory.html                      |  52 +-
 src/lab/exp8/Experiment.html                  |   2 +-
 src/lab/exp8/Feedback.html                    |   2 +-
 src/lab/exp8/Further Readings.html            |   2 +-
 src/lab/exp8/Hints1/Hint_0.html               |   8 +-
 src/lab/exp8/Hints1/Hint_1.html               |  18 +-
 src/lab/exp8/Hints1/Hint_2.html               |  18 +-
 src/lab/exp8/Hints1/Hint_3.html               |  20 +-
 src/lab/exp8/Hints1/Hint_4.html               |  66 +-
 src/lab/exp8/Hints2/Hint_0.html               |   8 +-
 src/lab/exp8/Hints2/Hint_1.html               |  18 +-
 src/lab/exp8/Hints2/Hint_2.html               |  16 +-
 src/lab/exp8/Hints2/Hint_3.html               |  16 +-
 src/lab/exp8/Hints2/Hint_4.html               | 104 ++--
 src/lab/exp8/Introduction.html                |   2 +-
 src/lab/exp8/Manual.html                      |   2 +-
 src/lab/exp8/Objective.html                   |   2 +-
 src/lab/exp8/Procedure.html                   |   2 +-
 src/lab/exp8/Quizzes.html                     |   2 +-
 src/lab/exp8/Theory.html                      | 177 +++---
 src/lab/exp8/default.html                     | 191 +++---
 .../exp8/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp8/furtherReadings.html             |   2 +-
 src/lab/exp8/lab.html                         | 583 ++++++++---------
 src/lab/exp8/lab_test.html                    | 299 ++++-----
 src/lab/exp8/objective.html                   |   2 +-
 src/lab/exp8/prob_desc.html                   | 140 +++--
 src/lab/exp8/quiz.html                        | 172 ++---
 src/lab/exp8/submission046206449.html         |   2 +-
 src/lab/exp8/submission173316296.html         |   2 +-
 src/lab/exp8/submission299697804.html         |   2 +-
 src/lab/exp8/submission334539183.html         |   2 +-
 src/lab/exp8/submission423347682.html         |   2 +-
 src/lab/exp8/submission667158425.html         |   2 +-
 src/lab/exp8/submission668064004.html         |   2 +-
 src/lab/exp8/submission691802271.html         |   2 +-
 src/lab/exp8/submission821300773.html         |   2 +-
 src/lab/exp8/submission880470462.html         |   2 +-
 src/lab/exp8/submission943336517.html         |   2 +-
 src/lab/exp8/submission943865944.html         |   2 +-
 src/lab/exp8/submission983041517.html         |   2 +-
 src/lab/exp8/test.html                        | 395 ++++++------
 src/lab/exp8/theory.html                      |  53 +-
 src/lab/exp9/Experiment.html                  |   2 +-
 src/lab/exp9/Feedback.html                    |   2 +-
 src/lab/exp9/Further Readings.html            |   2 +-
 src/lab/exp9/Hints1/Hint_0.html               |   5 +
 src/lab/exp9/Hints1/Hint_1.html               |  22 +-
 src/lab/exp9/Hints1/Hint_2.html               |  24 +-
 src/lab/exp9/Hints1/Hint_3.html               |  14 +-
 src/lab/exp9/Hints1/Hint_4.html               |  12 +-
 src/lab/exp9/Hints2/Hint_0.html               |   8 +-
 src/lab/exp9/Hints2/Hint_1.html               |  12 +-
 src/lab/exp9/Hints2/Hint_2.html               |  16 +-
 src/lab/exp9/Hints2/Hint_3.html               |  22 +-
 src/lab/exp9/Hints2/Hint_4.html               |  10 +-
 src/lab/exp9/Introduction.html                |   2 +-
 src/lab/exp9/Manual.html                      |   2 +-
 src/lab/exp9/Objective.html                   |   2 +-
 src/lab/exp9/Procedure.html                   |   2 +-
 src/lab/exp9/Quizzes.html                     |   2 +-
 src/lab/exp9/Theory.html                      | 193 +++---
 src/lab/exp9/default.html                     | 191 +++---
 .../exp9/edit_area/plugins/charmap/popup.html |  51 +-
 src/lab/exp9/furtherReadings.html             |   2 +-
 src/lab/exp9/lab.html                         | 583 ++++++++---------
 src/lab/exp9/lab_test.html                    | 299 ++++-----
 src/lab/exp9/objective.html                   |   2 +-
 src/lab/exp9/prob_desc.html                   | 118 ++--
 src/lab/exp9/quiz.html                        | 172 ++---
 src/lab/exp9/submission045226925.html         |   2 +-
 src/lab/exp9/submission093704599.html         |   2 +-
 src/lab/exp9/submission188928472.html         |   2 +-
 src/lab/exp9/submission293677335.html         |   2 +-
 src/lab/exp9/submission475438203.html         |   2 +-
 src/lab/exp9/submission535104989.html         |   2 +-
 src/lab/exp9/submission622055803.html         |   2 +-
 src/lab/exp9/submission857090763.html         |   2 +-
 src/lab/exp9/submission906685525.html         |   2 +-
 src/lab/exp9/submission910376433.html         |   2 +-
 src/lab/exp9/submission957349292.html         |   2 +-
 src/lab/exp9/test.html                        | 395 ++++++------
 src/lab/exp9/theory.html                      |  52 +-
 src/lab/expPh1/default.html                   | 191 +++---
 src/lab/expPh1/newcontenttempalte.html        | 177 +++---
 src/lab/exp_template.php                      |   2 +
 src/lab/faq.html                              |   2 +-
 src/lab/index.html                            |   2 +-
 src/themes/green-icon/search-result.html      |   2 +-
 454 files changed, 14228 insertions(+), 13501 deletions(-)
 create mode 100755 scripts/gtm-patcher.py
 create mode 100755 scripts/patch-analytics.sh
 create mode 100644 src/lab/exp1/Untitled-1.html

diff --git a/scripts/gtm-patcher.py b/scripts/gtm-patcher.py
new file mode 100755
index 00000000..fe86b64c
--- /dev/null
+++ b/scripts/gtm-patcher.py
@@ -0,0 +1,110 @@
+#!/usr/bin/python
+
+from bs4 import BeautifulSoup, Tag, Comment
+import sys
+
+headSnippet = """(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');"""
+
+iframeSrc = "https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR"
+
+
+insert_head = "<script class='gtm'>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-W59SWTR');</script>"
+def patch_php(filepath):
+    # print(filepath)
+    try:
+        if(1):
+            f1 = open(filepath,"r")
+            lines = f1.readlines()
+            string_inserted = ''
+            for line in lines:
+                if("<script class='gtm'>" in line):
+                    return
+            f1.close()
+        if(1):
+            # print(filepath)
+            f1 = open(filepath,"r")
+            lines = f1.readlines()
+            # print(lines)
+            string_inserted = ''
+            for line in lines:
+                if('<head>' in line):
+                    line = line.split('<head>')
+                    temp_string = line[0]
+                    temp_string+='<head>\n'
+                    temp_string+=insert_head+'\n'
+                    for i in line[1:]:
+                        temp_string+=i
+                    line = temp_string
+                string_inserted+=line
+            print(string_inserted)
+            f1.close()
+            f = open(filepath,"w")
+            f.write(string_inserted)
+            f.close()
+
+    except IOError as e:
+        print "I/O error({0}): {1}".format(e.errno, e.strerror)
+        return -1
+    except:
+        print "Unexpected error:", sys.exc_info()[0]
+        return -2
+    print "Analytics Patched Successfully"
+    return 0
+
+# load the file
+def patch(filepath):
+    if("php" in filepath):
+        patch_php(filepath)
+        return 0
+    try:
+        with open(filepath) as inf:
+            txt = inf.read()
+            # soup = BeautifulSoup(txt, 'html.parser')
+            soup = BeautifulSoup(txt, "html5lib")
+        mydiv = soup.head.find('script', { 'class': 'gtm' })
+        if not mydiv:
+            scrTag = Tag(soup, name = 'script')
+            scrTag['class'] = "gtm"
+            scrTag.string = headSnippet
+            soup.head.insert(0, Comment('End Google Tag Manager'))
+            soup.head.insert(0, scrTag)
+            soup.head.insert(0, Comment('Google Tag Manager'))
+            #scrTag.insert_before(Comment('Google Tag Manager'))
+            #scrTag.insert_after(Comment('End Google Tag Manager'))
+
+            # insert body snippet into the document
+            iframeTag = Tag(soup, name = 'iframe')
+            iframeTag['src'] = iframeSrc
+            iframeTag['height'] = "0"
+            iframeTag['width'] = "0"
+            iframeTag['style'] = "display:none;visibility:hidden"
+
+            noscrTag = Tag(soup, name = 'noscript')
+            noscrTag['class'] = 'gtm'
+            noscrTag.insert(0, iframeTag)
+            soup.body.insert(0, Comment('End Google Tag Manager (noscript)'))
+            soup.body.insert(0, noscrTag)
+            soup.body.insert(0, Comment('Google Tag Manager (noscript)'))
+            #noscrTag.insert_before(Comment('Google Tag Manager (noscript)'))
+            #noscrTag.insert_after(Comment('End Google Tag Manager (noscript)'))
+
+        # save the file again
+        with open(filepath, 'w') as outf:
+            outf.write(str(soup))
+
+    except IOError as e:
+        print "I/O error({0}): {1}".format(e.errno, e.strerror)
+        return -1
+    except:
+        print "Unexpected error:", sys.exc_info()[0]
+        return -2
+    print "Analytics Patched Successfully " + filepath
+    return 0
+
+
+if __name__=='__main__':
+    patch(sys.argv[1])
diff --git a/scripts/patch-analytics.sh b/scripts/patch-analytics.sh
new file mode 100755
index 00000000..c194049b
--- /dev/null
+++ b/scripts/patch-analytics.sh
@@ -0,0 +1,22 @@
+#!/bin/bash
+
+# This command applies the gtm-patcher.py script to each html and php file
+# recursively in the directory where it is executed.  As this intended
+# applying analytics code to each lab and experiment file, this script
+# should be executed in the src/ directory.
+
+# Any html file that starts with 'content' in its name, will be ignored
+# by the script as applying the script to these files breaks the page
+# structure.
+
+# The gtm-patcher.py file comes from vlabs-analytics project which
+# can be found here: https://github.com/virtual-labs/vlabs-analytics
+
+# NOTE: This command will change the src files.
+
+find . -type f \
+     \( \
+     \( -name "*.html" -or -name "*.php" \) \
+     ! -name "content*.html" \
+     \) \
+     -exec ../scripts/gtm-patcher.py {} \;
diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 8eabaf5a..789a0d75 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 3ada0a03..1aba324e 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index d8e37d40..4eac8676 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 5c057765..5adddf61 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index 085c5a0f..cda4d8b2 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index faf44dbd..4734be8f 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/default.html b/src/lab/default.html
index b67bf5f1..b60defe7 100644
--- a/src/lab/default.html
+++ b/src/lab/default.html
@@ -7,7 +7,7 @@
   <title> UI Manual</title>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="lab"> <!-- The Lab Document Container-->
   
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 472a7046..5b3668b4 100644
--- a/src/lab/exp1/Experiment.html
+++ b/src/lab/exp1/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index f2706f6c..47f46af5 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index 4d030855..37d49970 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp1/Hints1/Hint_0.html b/src/lab/exp1/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp1/Hints1/Hint_0.html
+++ b/src/lab/exp1/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_1.html b/src/lab/exp1/Hints1/Hint_1.html
index 87838f15..3d36af94 100755
--- a/src/lab/exp1/Hints1/Hint_1.html
+++ b/src/lab/exp1/Hints1/Hint_1.html
@@ -1,12 +1,17 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
-->count the bits using a while loop
-->print count
+-&gt;declare N, count
+-&gt;scan N and make count 0
+-&gt;count the bits using a while loop
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index baf2450d..2cb9673a 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
@@ -1,13 +1,18 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
-->Use right shift operator and while
+-&gt;declare N, count
+-&gt;scan N and make count 0
+-&gt;Use right shift operator and while
   loop for find the number of bits
-->print count
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 24856ee8..907ba7f9 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
+++ b/src/lab/exp1/Hints1/Hint_3.html
@@ -1,15 +1,20 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
-->declare N, count
-->scan N and make count 0
+-&gt;declare N, count
+-&gt;scan N and make count 0
 while(n){
-	n>>=1;
+	n&gt;&gt;=1;
 	count++;
 }
-->print count
+-&gt;print count
 
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index 742a9713..1ee5e654 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
+++ b/src/lab/exp1/Hints1/Hint_4.html
@@ -1,11 +1,15 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -13,3 +17,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 7786ca51..759df99b 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
-->Add the number of  strings 
+-&gt;Add the number of  strings 
   we surpass when we move from 
   i<sup>th</sup> character to  i+1<sup>th</sup> character of 
   input string
@@ -13,3 +16,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index 5eb3994c..17ac37bb 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -1,12 +1,15 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
 
-->for i=0 to lengt;h of inputString
+-&gt;for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -16,3 +19,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index 11f66d3e..245b711f 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -1,17 +1,20 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
-->scan the input 
-->scan the input string, whose rank 
+-&gt;scan the input 
+-&gt;scan the input string, whose rank 
   we need to find out
 
--> Number of strings starting with 
+-&gt; Number of strings starting with 
    ordering[j] is given by 2^j , store 
    them in an array or calculate on the fly
    using left shift operator
 
-->for i=0 to lengt;h of inputString
+-&gt;for i=0 to lengt;h of inputString
 	while ordering[j] is not input[i]
 		add the number of strings
 		starting with ordering[j]
@@ -21,3 +24,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index 46e7bc40..90838de7 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -1,13 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -31,3 +34,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 66dfc0cc..c3392253 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -1,33 +1,35 @@
-
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
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@@ -35,13 +37,13 @@
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 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -49,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -57,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -80,45 +82,44 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
-<br>
+<br/>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br>
+<br/>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br><r/>
+<br/><r>
  <p><b>Input Specification</b></p><br/>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr/>
+<br/><hr/>
 <p><b>Output Specification</b></p><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr/>
+<br/><hr/>
 <p><b>Sample Input and Output</b></p><br/>
 <p>
 Input: 4<br/>
@@ -127,24 +128,24 @@ <h2>Problem 1:</h2>
 Output: 5<br/>
 </p>
 <p align="right"></p>
-<br><hr/>
+<br/><hr/>
 
 <h2>Problem 2:</h2>
 <p> 
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr/>
+<br/><hr/>
 <p><b>Input Specification</b></p><br/>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr/>
+<br/><hr/>
 <p><b>Output Specification</b></p><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr/>
+<br/><hr/>
 <p><b>Sample Input and Output</b></p><br/>
 <p>
 Input: 3 A B C AC <br/>
@@ -153,8 +154,8 @@ <h2>Problem 2:</h2>
 Output: 6<br/>
 </p>
 <p align="right"></p>
-<br><hr/>
-</br></br>  </div>						</div>
+<br/><hr/>
+<br/><br/>  </r></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -164,68 +165,56 @@ <h2>Problem 2:</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
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-				style="color: white" > QA Integration
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
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+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
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+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
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+</footer>
 
 
 
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-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -276,4 +265,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index a53aac1d..fd43e291 100644
--- a/src/lab/exp1/Manual.html
+++ b/src/lab/exp1/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 21e498e7..44c23873 100644
--- a/src/lab/exp1/Objective.html
+++ b/src/lab/exp1/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index ed0d1499..6d590509 100644
--- a/src/lab/exp1/Procedure.html
+++ b/src/lab/exp1/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quizzes.html
index a949c61b..b671d635 100644
--- a/src/lab/exp1/Quizzes.html
+++ b/src/lab/exp1/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index f7b4cdf4..d26e606c 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
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-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
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-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
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@@ -34,13 +37,13 @@
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 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -48,7 +51,7 @@
 			               
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 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
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@@ -79,61 +82,59 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
 etc.
-<br><br>
+<br/><br/>
 
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
-</br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
+<br/>
 </p>
 
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 Lets start with an example. Consider the sample input, the given characters are A,B,C and the input string is AC. Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B, right?
 Thus, the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC. But luckily we have initial letter as A. Now the 1<sup>st</sup> character is 'C' , thus we need to count all the strings which start with AB. If instead of 'C' there was a D, then we would have to count the number of strings starting with AB, AC. In this manner we proceed adding the requisite number of strings to our result.
 </p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -143,68 +144,56 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
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-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
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@@ -255,4 +244,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
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-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Untitled-1.html b/src/lab/exp1/Untitled-1.html
new file mode 100644
index 00000000..a1d5009d
--- /dev/null
+++ b/src/lab/exp1/Untitled-1.html
@@ -0,0 +1,242 @@
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
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+  <!--End Google Tag Manager-->
+  <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+  <title>
+   EditArea - the code editor in a textarea
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+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+  </script>
+ </head>
+ <body>
+  <!--Google Tag Manager (noscript)-->
+  <noscript class="gtm">
+   &amp;amp;amp;amp;amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;amp;amp;amp;amp;gt;
+   &amp;amp;amp;amp;amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;amp;amp;amp;amp;gt;
+  </noscript>
+  <!--End Google Tag Manager (noscript)-->
+  <header id="site_head">
+   <div class="header_cont">
+    <!-- 960px header-->
+    <!-- LOGO of the company-->
+    <div id="logo">
+     <h1>
+      Numerical Representation
+     </h1>
+    </div>
+   </div>
+   <!-- Menu -->
+  </header>
+  <article id="main_content">
+   <!--960px limit -->
+   <header id="main-title">
+    <!--h1>OJ ... Happily judging your solution</h1-->
+   </header>
+   <div id="content">
+    <div id="contentLeft">
+     <!-- <span>
+<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+CHOOSE FILE TO LOAD: 
+<input name="file" id="file" size="20" type="file" />&nbsp;
+<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p> -->
+    </div>
+   </div>
+  </article>
+ 
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bk_lab.html b/src/lab/exp1/bk_lab.html
index 5fbc518f..6ecbbcd7 100755
--- a/src/lab/exp1/bk_lab.html
+++ b/src/lab/exp1/bk_lab.html
@@ -1,287 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bkcontent.html b/src/lab/exp1/bkcontent.html
index 3e171776..31cb6757 100755
--- a/src/lab/exp1/bkcontent.html
+++ b/src/lab/exp1/bkcontent.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -12,80 +16,80 @@ <h2>Introduction </h2>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number.
+Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number.
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a single positive integer(&lt 10<sup>6</sup>).
+Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 4<br />
-Output:3<br />
-Input: 16 <br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 4<br/>
+Output:3<br/>
+Input: 16 <br/>
 Output: 5<br/>
-<br><hr />
-<br>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 3 A B C AC <br />
-Output: 4<br />
-Input: 3 A B C BC<br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 3 A B C AC <br/>
+Output: 4<br/>
+Input: 3 A B C BC<br/>
 Output: 6<br/>
-<br><hr />
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
-etc.<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
+etc.<br/>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
 </p>       
 
-<br>
+<br/>
 
 <h3>Problem 2</h3>
 <p>
@@ -107,3 +111,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/bkindex.html b/src/lab/exp1/bkindex.html
index a79598bf..818b4b5a 100755
--- a/src/lab/exp1/bkindex.html
+++ b/src/lab/exp1/bkindex.html
@@ -1,91 +1,95 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 4<br />
-						Output:3<br />
-						Input: 16 <br />
-						Output: 5<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+<!--		<script src="jqminmax.js" type="text/javascript"></script> -->
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 4<br/>
+						Output:3<br/>
+						Input: 16 <br/>
+						Output: 5<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (less than equal to 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/default.html b/src/lab/exp1/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp1/default.html
+++ b/src/lab/exp1/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/edit_area/plugins/charmap/popup.html b/src/lab/exp1/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp1/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp1/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/furtherReadings.html b/src/lab/exp1/furtherReadings.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp1/furtherReadings.html
+++ b/src/lab/exp1/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/indexmar.html b/src/lab/exp1/indexmar.html
index 454bc4d0..cb3c001b 100755
--- a/src/lab/exp1/indexmar.html
+++ b/src/lab/exp1/indexmar.html
@@ -1,16 +1,19 @@
-<!DOCTYPE html> 
-<html lang="eng">
-<head>
-	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
+<!DOCTYPE html>
+<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
 	<title> Virtual Labs | Experiments </title>
 
-	<link href="default.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-	<link href="../css/prettify.css" type="text/css" rel="stylesheet" /> 
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/> 
 
-	<script type="text/javascript" src="../colorjs/prettify.js"></script> 
+	<script src="../colorjs/prettify.js" type="text/javascript"></script> 
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -42,7 +45,7 @@
     </script>
 </head>
 
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
         <header id="site_head">
                 <div class="header_cont"> <!-- 960px header-->
                         <!-- LOGO of the company-->
@@ -77,6 +80,7 @@ <h1> <a href="http://virtual-labs.ac.in"> Virtual Labs </a> </h1>
 
 		<footer class="bottom">
 		</footer>
-</body>
-</html>
 
+
+
+</article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/lab.html b/src/lab/exp1/lab.html
index 7dd8b6ba..776a61a2 100755
--- a/src/lab/exp1/lab.html
+++ b/src/lab/exp1/lab.html
@@ -1,289 +1,292 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
- 
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Numerical Representation </h1>
+			</div>
+
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+ 
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/lab_test.html b/src/lab/exp1/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp1/lab_test.html
+++ b/src/lab/exp1/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/newindex.html b/src/lab/exp1/newindex.html
index 8af97fcc..fd67117a 100755
--- a/src/lab/exp1/newindex.html
+++ b/src/lab/exp1/newindex.html
@@ -1,14 +1,17 @@
-<!DOCTYPE html> 
-<html lang="eng">
-<head>
-	<meta http-eqiv="content-Type" content="text/html;charset=utf-8"/>
+<!DOCTYPE html>
+<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
 	<title> Virtual Labs | Programming Lab 2 </title>
 
-	<link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-	<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	<script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-	<link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-	<script type="text/javascript" src="../colorjs/prettify.js"></script>
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	<script src="../colorjs/prettify.js" type="text/javascript"></script>
 	<script type="text/javascript">
 		$(document).ready(function() 
 		{
@@ -40,7 +43,7 @@
     </script>
 </head>
 
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 	<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -75,6 +78,7 @@ <h1>Experiment 1</h1>
 
 		<footer class="bottom">
 		</footer>
-	</div>
-</body>
-</html>
+	
+
+
+</article></body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/objective.html b/src/lab/exp1/objective.html
index 90cec68f..f7ba2977 100755
--- a/src/lab/exp1/objective.html
+++ b/src/lab/exp1/objective.html
@@ -1,55 +1,59 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-				<h2> Objective </h2> 
-	<p><ol>
-	<li>To learn about the meaning of operators
-        </li>
-        <li>To learn about the precedence and assosciativity of the operators
-        </li>
-        <li>To learn how to evaluate an expression by evaluating its sub expressions
-        </li>
-
-	</p> 	
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+				<h2> Objective </h2> 
+	<p></p><ol>
+	<li>To learn about the meaning of operators
+        </li>
+        <li>To learn about the precedence and assosciativity of the operators
+        </li>
+        <li>To learn how to evaluate an expression by evaluating its sub expressions
+        </li>
+
+	<p></p> 	
+				</ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/previndex.html b/src/lab/exp1/previndex.html
index 837c1b0d..f70200d3 100755
--- a/src/lab/exp1/previndex.html
+++ b/src/lab/exp1/previndex.html
@@ -1,91 +1,95 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
-			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
-				<ol>
-						<li> <h2>Problem 1:</h2>
-			Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as
-binary number
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-		Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 4<br />
-						Output:3<br />
-						Input: 16 <br />
-						Output: 5<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+			How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on
+			that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
+				<ol>
+						<li> <h2>Problem 1:</h2>
+			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
+binary number
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 4<br/>
+						Output:3<br/>
+						Input: 16 <br/>
+						Output: 5<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/prevlab.html b/src/lab/exp1/prevlab.html
index e5cd3d36..237bac34 100755
--- a/src/lab/exp1/prevlab.html
+++ b/src/lab/exp1/prevlab.html
@@ -1,287 +1,290 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<p>Please insert your code here</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/prob_desc.html b/src/lab/exp1/prob_desc.html
index 14a7e4ac..e5a7ac28 100755
--- a/src/lab/exp1/prob_desc.html
+++ b/src/lab/exp1/prob_desc.html
@@ -1,64 +1,68 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-	<title>Experiment 1</title>
-        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-        <link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-        <script type='text/javascript' src='../js/jquery-1.4.2.min.js'></script>
-        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-        <script type="text/javascript" src="../colorjs/prettify.js"></script>
-	<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-	<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-	<div id="content">
-	<ol>
-	<li> 
-        <h2>Problem 1:</h2>
-	Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as binary number
-						<br /><br /><hr />
-	<b>Input Specification</b><br />
-	Input contains a single positive integer(&lt 10^6) <br /><br /><hr />
-	<b>Output Specification</b><br />
-	Output the minimum number of bits required for the representing in binary <br /><br /><hr />
-	<b>Sample Input and Output</b><br />
-	Input: 4<br />
-	Output: 3<br />
-	Input: 16 <br />
-	Output: 5<br/>
-	<hr />
-	</li>
-	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-	<li><h2>Problem 2:</h2>
-<p>
-Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
-		characters) which preserves the ordering in the input (assuming that all words are valid words in the
-			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
-		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
-		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
-				every word in the dictionary!!)
-</p>
-						<br /><br /><hr />
-<b>Input Specification</b><br/>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters
-in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br /><br /><hr />
-<b>Output Specification</b><br />
-			Output must be the index of the word in the dictionary.
-				<br /><br /><hr />
-						<b>Sample Input and Output</b><br />
-						Input: 3 A B C AC <br />
-						Output: 4<br />
-						Input: 3 A B C BC<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-			<div id="footer">
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>Experiment 1</title>
+        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+        <link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+        <script src="../colorjs/prettify.js" type="text/javascript"></script>
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+	<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<div id="content">
+	<ol>
+	<li> 
+        <h2>Problem 1:</h2>
+	Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number
+						<br/><br/><hr/>
+	<b>Input Specification</b><br/>
+	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
+	<b>Output Specification</b><br/>
+	Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
+	<b>Sample Input and Output</b><br/>
+	Input: 4<br/>
+	Output: 3<br/>
+	Input: 16 <br/>
+	Output: 5<br/>
+	<hr/>
+	</li>
+	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+	<li><h2>Problem 2:</h2>
+<p>
+Given N (≤ 26) followed by N distinct characters, we can find all possible 2<sup>N</sup>− 1 words(sequence of 
+		characters) which preserves the ordering in the input (assuming that all words are valid words in the
+			language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are
+		A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e.,
+		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
+				every word in the dictionary!!)
+</p>
+						<br/><br/><hr/>
+<b>Input Specification</b><br/>
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
+in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br/><br/><hr/>
+<b>Output Specification</b><br/>
+			Output must be the index of the word in the dictionary.
+				<br/><br/><hr/>
+						<b>Sample Input and Output</b><br/>
+						Input: 3 A B C AC <br/>
+						Output: 4<br/>
+						Input: 3 A B C BC<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+			<div id="footer">
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/quiz.html b/src/lab/exp1/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp1/quiz.html
+++ b/src/lab/exp1/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/realcontent.html b/src/lab/exp1/realcontent.html
index a3aac2e9..bbbe7b23 100755
--- a/src/lab/exp1/realcontent.html
+++ b/src/lab/exp1/realcontent.html
@@ -1,6 +1,10 @@
 <!DOCTYPE html>
-<head></head>
-<h1 id="main-title">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Numerical Representation
 </h1>
 
@@ -9,84 +13,84 @@ <h2>Introduction </h2>
 <p> 
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br>
+<br/>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
-Given a positive integer (&lt= 1000000), find the minimum number of bits required to represent it as a binary number.
+Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a single positive integer(&lt 10<sup>6</sup>).
+Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br><hr />
-<b>Output Specification</b><br />
+<br/><hr/>
+<b>Output Specification</b><br/>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 4<br />
-Output:3<br />
-Input: 16 <br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 4<br/>
+Output:3<br/>
+Input: 16 <br/>
 Output: 5<br/>
-<br><hr />
-<br>
+<br/><hr/>
+<br/>
 </li>
 
 <li><h2>Problem 2:</h2>
 <p> 
-Given N(&lt=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
+Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br><hr />
-<b>Input Specification</b><br />
+<br/><hr/>
+<b>Input Specification</b><br/>
 <p>
-Input contains a number N representing the number of alphabets(&lt=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
+Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br><hr />						
-<b>Output Specification</b><br />
+<br/><hr/>						
+<b>Output Specification</b><br/>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br><hr />
-<b>Sample Input and Output</b><br />
-Input: 3 A B C AC <br />
-Output: 4<br />
-Input: 3 A B C BC<br />
+<br/><hr/>
+<b>Sample Input and Output</b><br/>
+Input: 3 A B C AC <br/>
+Output: 4<br/>
+Input: 3 A B C BC<br/>
 Output: 6<br/>
-<br><hr />
+<br/><hr/>
 </li>
-</div> 
+</ol></div> 
 
 <div id="theory"> 
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
-n=1, gives<br>
-0,1<br>
-n=2, gives<br>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
+n=1, gives<br/>
+0,1<br/>
+n=2, gives<br/>
 00,01,10,11
-n=3, gives<br>
-000,001,010,011,100,101,110,111<br>
-etc.<br>
+n=3, gives<br/>
+000,001,010,011,100,101,110,111<br/>
+etc.<br/>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br>
-Step 1 :96/2 gives quotient as 48<br>
-Step 2 :48/2 gives quotient as 24<br>
-Step 3 :24/2 gives quotient as 12<br>
-Step 4 :12/2 gives quotient as 6<br>
-Step 5 :6/2 gives quotient as 3<br>
-Step 6 :3/2 gives quotient as 1<br>
+Then,<br/>
+Step 1 :96/2 gives quotient as 48<br/>
+Step 2 :48/2 gives quotient as 24<br/>
+Step 3 :24/2 gives quotient as 12<br/>
+Step 4 :12/2 gives quotient as 6<br/>
+Step 5 :6/2 gives quotient as 3<br/>
+Step 6 :3/2 gives quotient as 1<br/>
 </p>       
 
-<br>
+<br/>
 
 <h2>Problem 2</h2>
 <p>
@@ -108,3 +112,4 @@ <h3>Manual</h3>
 	</ol>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </div>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission040361394.html b/src/lab/exp1/submission040361394.html
index 4b03c40f..23444923 100644
--- a/src/lab/exp1/submission040361394.html
+++ b/src/lab/exp1/submission040361394.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp; -->
 <!-- <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>)</span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082188330.html b/src/lab/exp1/submission082188330.html
index 2b5792a4..4a1380ba 100644
--- a/src/lab/exp1/submission082188330.html
+++ b/src/lab/exp1/submission082188330.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -286,23 +288,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>1000000
 </td><td>20
 </td><td>20
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -315,10 +316,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082365658.html b/src/lab/exp1/submission082365658.html
index fc387f2d..4488a9e0 100644
--- a/src/lab/exp1/submission082365658.html
+++ b/src/lab/exp1/submission082365658.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission100779049.html b/src/lab/exp1/submission100779049.html
index fad0fe22..2bd08e7c 100644
--- a/src/lab/exp1/submission100779049.html
+++ b/src/lab/exp1/submission100779049.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,11 +208,11 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
-<iframe id="upload_target" name ="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
 </form>
 </span>
 
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission111383690.html b/src/lab/exp1/submission111383690.html
index 17e82f56..67dd3798 100644
--- a/src/lab/exp1/submission111383690.html
+++ b/src/lab/exp1/submission111383690.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission155196644.html b/src/lab/exp1/submission155196644.html
index 8d27602f..d3cd2d35 100644
--- a/src/lab/exp1/submission155196644.html
+++ b/src/lab/exp1/submission155196644.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission192297025.html b/src/lab/exp1/submission192297025.html
index 345f6dc1..fe66e338 100644
--- a/src/lab/exp1/submission192297025.html
+++ b/src/lab/exp1/submission192297025.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -250,48 +252,47 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -318,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -337,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission246138070.html b/src/lab/exp1/submission246138070.html
index 47887176..9459a07b 100644
--- a/src/lab/exp1/submission246138070.html
+++ b/src/lab/exp1/submission246138070.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission261786162.html b/src/lab/exp1/submission261786162.html
index af9803f6..33bc1cdc 100644
--- a/src/lab/exp1/submission261786162.html
+++ b/src/lab/exp1/submission261786162.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,26 +220,25 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -252,50 +254,49 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -308,10 +309,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission293575265.html b/src/lab/exp1/submission293575265.html
index 5ac0b840..cca260b2 100644
--- a/src/lab/exp1/submission293575265.html
+++ b/src/lab/exp1/submission293575265.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission341502595.html b/src/lab/exp1/submission341502595.html
index dc7b8926..9457bbae 100644
--- a/src/lab/exp1/submission341502595.html
+++ b/src/lab/exp1/submission341502595.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,50 +236,49 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -290,10 +291,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission374353207.html b/src/lab/exp1/submission374353207.html
index bd0b9861..22404e93 100644
--- a/src/lab/exp1/submission374353207.html
+++ b/src/lab/exp1/submission374353207.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -251,34 +253,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -299,23 +301,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -328,10 +329,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission394922362.html b/src/lab/exp1/submission394922362.html
index 8d27602f..d3cd2d35 100644
--- a/src/lab/exp1/submission394922362.html
+++ b/src/lab/exp1/submission394922362.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission398367358.html b/src/lab/exp1/submission398367358.html
index 345f6dc1..fe66e338 100644
--- a/src/lab/exp1/submission398367358.html
+++ b/src/lab/exp1/submission398367358.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,24 +220,23 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -250,48 +252,47 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-#include&lt;stdio.h&gt;
+<pre>#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
 	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
@@ -318,13 +319,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -337,10 +338,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission447675640.html b/src/lab/exp1/submission447675640.html
index 5e8f3637..f469bb9d 100644
--- a/src/lab/exp1/submission447675640.html
+++ b/src/lab/exp1/submission447675640.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>20
-</td><td> Failed </td><td> Run Time Error </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission451578265.html b/src/lab/exp1/submission451578265.html
index bd0b9861..22404e93 100644
--- a/src/lab/exp1/submission451578265.html
+++ b/src/lab/exp1/submission451578265.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,25 +220,24 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -251,34 +253,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -299,23 +301,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -328,10 +329,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission465083441.html b/src/lab/exp1/submission465083441.html
index 5ac0b840..cca260b2 100644
--- a/src/lab/exp1/submission465083441.html
+++ b/src/lab/exp1/submission465083441.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,16 +220,15 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,34 +236,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -270,23 +272,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -299,10 +300,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission535736206.html b/src/lab/exp1/submission535736206.html
index 138e893e..da7614a5 100644
--- a/src/lab/exp1/submission535736206.html
+++ b/src/lab/exp1/submission535736206.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,27 +220,26 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 	
 	
-	
-		#include<stdio.h>
+		#include&lt;stdio.h&gt;
 main(){
 int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	char input_chars[N];
 	int i;
-	for(i=0;i<N ;i++)
+	for(i=0;i&lt;N ;i++)
 	{
-		scanf(" %c",&input_chars[i]);
+		scanf(" %c",&amp;input_chars[i]);
 	}
 	char input[100];
 	scanf("%s",input);
 	int position=0,j=0; 
 	int addValue[N];
-	for(i=0,j=N-1;i<N ;i++,j--)
-	   addValue[i] = (1<<j);
+	for(i=0,j=N-1;i&lt;N ;i++,j--)
+	   addValue[i] = (1&lt;&lt;j);
 	
 	
 	for(i=0,j=0;input[i];i++){
@@ -253,34 +255,34 @@ <h1> Numerical Representation </h1>
 	return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="codeId">
+<select id="codeId" name="codeId">
 
 <option value="Problem1"> 1  </option>
 
-<option value="Problem2" selected="selected"> 2  </option>
+<option selected="selected" value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -301,23 +303,22 @@ <h1> Numerical Representation </h1>
 </td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
 </td><td>32766
 </td><td>32766
-</td><td> Passed </td></tr></table></div> <!--contentLeft -->
+</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -330,10 +331,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission612317503.html b/src/lab/exp1/submission612317503.html
index fc387f2d..4488a9e0 100644
--- a/src/lab/exp1/submission612317503.html
+++ b/src/lab/exp1/submission612317503.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,36 +236,36 @@ <h1> Numerical Representation </h1>
 }
 </textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -271,9 +273,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -284,13 +286,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -303,10 +305,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission851076195.html b/src/lab/exp1/submission851076195.html
index dc7b8926..9457bbae 100644
--- a/src/lab/exp1/submission851076195.html
+++ b/src/lab/exp1/submission851076195.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -234,50 +236,49 @@ <h1> Numerical Representation </h1>
 }
 		</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -290,10 +291,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission932738197.html b/src/lab/exp1/submission932738197.html
index 8d27602f..d3cd2d35 100644
--- a/src/lab/exp1/submission932738197.html
+++ b/src/lab/exp1/submission932738197.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,15 +220,14 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
-		#include<stdio.h>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
+		#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -233,36 +235,36 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br></div> <!--contentLeft -->
+<br/><br/></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
 <pre> 
@@ -270,9 +272,9 @@ <h4> HINTS </h4><br>
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -283,13 +285,13 @@ <h4> HINTS </h4><br>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 4
  </span></span>
@@ -302,10 +304,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission958166466.html b/src/lab/exp1/submission958166466.html
index 47887176..9459a07b 100644
--- a/src/lab/exp1/submission958166466.html
+++ b/src/lab/exp1/submission958166466.html
@@ -1,14 +1,17 @@
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
 		// initialisation
 		editAreaLoader.init({
@@ -187,7 +190,7 @@
 	
 	</script>
 </head>
-<body>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -205,7 +208,7 @@ <h1> Numerical Representation </h1>
 				<div id="content">
 <div id="contentLeft">
 <span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 <!-- CHOOSE FILE TO LOAD: 
 <input name="file" id="file" size="20" type="file" />&nbsp;
 <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
@@ -217,17 +220,16 @@ <h1> Numerical Representation </h1>
 
 <center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
 <fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-	
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
 	
 		 
-#include<stdio.h>
+#include&lt;stdio.h&gt;
 int main(){
 
 int N,count=0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 while(N){
-	N>>=1;
+	N&gt;&gt;=1;
 	count++;
 }
 printf("%d\n",count);
@@ -235,34 +237,34 @@ <h1> Numerical Representation </h1>
 return 0;
 }</textarea>
 	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+Language                              ProblemNo
 
-<br>
+<br/>
 
-<select name="language" id="codeId">
+<select id="codeId" name="language">
 
-<option value="c" selected="selected"> C (gcc 4.3.2) </option>
+<option selected="selected" value="c"> C (gcc 4.3.2) </option>
 
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 
-</select>&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
+</select>                   
+    
 
-<select name="codeId" id="probId">
+<select id="probId" name="codeId">
 
-<option value="Problem1" selected="selected"> 1  </option>
+<option selected="selected" value="Problem1"> 1  </option>
 
 <option value="Problem2"> 2  </option>
 
-</select><a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-<input type="hidden" value="0" name="highHint" id="highHint_id"/>
+</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+<input id="highHint_id" name="highHint" type="hidden" value="0"/>
 
-<br><br><table border="1" cellpadding="15" id="tableInpOut" ><tr>
+<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
 		<td> Input Data </td> 
 		<td> Expected Output </td>
 		<td> Code Output </td>
@@ -271,23 +273,22 @@ <h1> Numerical Representation </h1>
 		</tr><tr><td>100
 </td><td>7
 </td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></table></div> <!--contentLeft -->
+</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
 <div id="contentRight">
-   <h4> HINTS </h4><br>
+   <h4> HINTS </h4><br/>
    <div id="hintBox">
 
-<pre>
-</pre>
+<pre></pre>
  </div> <!--contentLeft -->
   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
    <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
    </select>
-   <span>Highest Level Hint used: <span  id="highHint">
+   <span>Highest Level Hint used: <span id="highHint">
 
 0
  </span></span>
@@ -300,10 +301,11 @@ <h4> HINTS </h4><br>
 			<div id="footer">
 	<!--		  Developed By  --> 
 			</div>
-		</div>
-	</form>		
+		
+			
 
 	
-</body>
-</html>
 
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/test.html b/src/lab/exp1/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp1/test.html
+++ b/src/lab/exp1/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/theory.html b/src/lab/exp1/theory.html
index efde3cb9..b31bca4c 100755
--- a/src/lab/exp1/theory.html
+++ b/src/lab/exp1/theory.html
@@ -1,18 +1,21 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
 <!--		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/> -->
-	        <link href="../css/common.css" rel="stylesheet" type="text/css" media="screen" />
-       		<link href="../css/style.css" rel="stylesheet" type="text/css" media="screen" />
-	        <script type="text/javascript" src="../js/jquery-1.4.2.min.js"></script>
-	        <link href="../css/prettify.css" type="text/css" rel="stylesheet" />
-	        <script type="text/javascript" src="../colorjs/prettify.js"></script>
+	        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
+       		<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
+	        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	        <script src="../colorjs/prettify.js" type="text/javascript"></script>
 
 <!--		<script src="jqminmax.js" type="text/javascript"></script> -->
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -38,12 +41,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-<p>
+        <p></p><h3>Problem 1</h3>
+<pre><p>
         Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.
         n=1
         0,1
@@ -69,13 +71,12 @@ <h2>Theory</h2>
 
 
 </p>       
-</p>
+<p></p>
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Lets start with an example. Consider the sample input , the given characters are A,B,C and the input string is AC.
 	Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. 
 	If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B right.
 	Thus the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC.
@@ -85,12 +86,13 @@ <h2>Theory</h2>
 	we proceed adding the requisite number of strings to our result.   
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index 3e28907c..77de9acd 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index 4be57de8..fbd2e4a3 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index a9c55cf7..e8e77ae7 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index d9d10e89..c5a3e8f7 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
-->declare variables to store the
+-&gt;declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
-->Iterate over the array and update the 
+-&gt;Iterate over the array and update the 
   variables 
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index d842949e..017252e7 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -1,23 +1,27 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
-->declare variables to store the
+-&gt;declare variables to store the
   maximum size of the continuous
   subsequence and the size of current
   decreasing subsequence
- ->curr_size=1
- ->max_size = 0
+ -&gt;curr_size=1
+ -&gt;max_size = 0
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
-		->update max_size, curr_size
+		-&gt;update max_size, curr_size
 	  else
-		  ->update curr_size
+		  -&gt;update curr_size
 	
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index fb4ea16b..094f185b 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -1,12 +1,15 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare N and scan N
-->declare an array of size of N 
+-&gt;declare N and scan N
+-&gt;declare an array of size of N 
   and scan it 
 
- ->curr_size=1
- ->max_size = 0   //to take care of empty array
+ -&gt;curr_size=1
+ -&gt;max_size = 0   //to take care of empty array
  for i=1 to N:
 	 if(arr[i]&lt;arr[i-1])
 		++curr_size
@@ -14,8 +17,9 @@
 		 curr_size=1;
 	 max_size = (max_size&gt;curr_size)?max_size:curr_size
 	
--> print the maximum size of decreasing 
+-&gt; print the maximum size of decreasing 
   subsequence
 return 0;	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 782b15d3..39e80f74 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -1,15 +1,18 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
 	int length=1;
 	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&num)!=EOF) /* If there is no number in the input file maximum length must be 0,
+	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
                                  otherwise it is atleast 1*/
 		max_length=1;
 		
-	while(fscanf(stdin,"%d",&curr_num)!=EOF){
+	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
     // Scan and compute longest subsequence till EOF
 		if(curr_num&lt;num)
 			length++;
@@ -24,3 +27,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
+++ b/src/lab/exp10/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index 40acf619..d060982c 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
- ->Implement the recursive formula
+ -&gt;Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index 7df43da2..b481eead 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -1,22 +1,26 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
   for i=0 to N
-	  ->Initialise best[i]
+	  -&gt;Initialise best[i]
 	  for j=0 to i-1
 		if arr[i]&lt;arr[j]
 			best[i] = max(best[i],best[j]+1)
-	  ->Try to update the answer
- ->Implement the recursive formula
+	  -&gt;Try to update the answer
+ -&gt;Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index 5a042c48..d51e61eb 100755
--- a/src/lab/exp10/Hints2/Hint_3.html
+++ b/src/lab/exp10/Hints2/Hint_3.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare and scan N
--> declare an array of size N 
+-&gt;declare and scan N
+-&gt; declare an array of size N 
    and scan the array
- ->declare an auxiliary array of
+ -&gt;declare an auxiliary array of
    size of N to implement the 
    recursive formula
   int longest_length=0;
@@ -19,3 +22,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index b646bb15..cba28ba3 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int *arr=0,*best=0;
 if(N){
     arr=(int *)malloc(sizeof(int)*N);
@@ -29,3 +32,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index c06e45ba..b1ec36d5 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
index b0305c7f..2ca2ecd7 100644
--- a/src/lab/exp10/Manual.html
+++ b/src/lab/exp10/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
index 5c75a4a6..008e6f1b 100644
--- a/src/lab/exp10/Objective.html
+++ b/src/lab/exp10/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
index 44f4d7d2..df94528c 100644
--- a/src/lab/exp10/Procedure.html
+++ b/src/lab/exp10/Procedure.html
@@ -29,7 +29,7 @@
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diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quizzes.html
index 88b4210b..d0890a43 100644
--- a/src/lab/exp10/Quizzes.html
+++ b/src/lab/exp10/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index 87fbf1dc..6fb94c04 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -1,32 +1,35 @@
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+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
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+    <link href="../css/style.css" rel="stylesheet"/>
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
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@@ -34,13 +37,13 @@
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-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -48,7 +51,7 @@
 			               
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 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
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 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                    <li class="page-scroll menu-li " >
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-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
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@@ -79,35 +82,33 @@
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-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
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-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
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+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
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-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just need to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the currrent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the previous number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 This is a very famous problem. It's known as longest increasing subsequence problem.Let us consider a naive approach of solving this problem. For every subsequence if it is a increasing subsequence we try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity of this appraoch it is clear that it is goin to take 2<sup>N</sup>*N operations. So, if N = 30, this approach would take 32212254720 (~3*10<sup>11</sup>) operations. Looking at the constraints it is obvious that this algorithm is not feasible. Now we look at the standard solution. You may refer wikipedia for the same.  
 </p>
@@ -122,7 +123,7 @@ <h3>Recursive formulation </h3>
 <b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </p>
 <p align="right"></p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -132,67 +133,56 @@ <h3>Recursive formulation </h3>
 			
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-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -243,4 +233,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp10/default.html b/src/lab/exp10/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp10/default.html
+++ b/src/lab/exp10/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/edit_area/plugins/charmap/popup.html b/src/lab/exp10/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp10/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp10/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/furtherReadings.html b/src/lab/exp10/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp10/furtherReadings.html
+++ b/src/lab/exp10/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/lab.html b/src/lab/exp10/lab.html
index a8a95667..f9200939 100755
--- a/src/lab/exp10/lab.html
+++ b/src/lab/exp10/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Sequences </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Sequences </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/lab_test.html b/src/lab/exp10/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp10/lab_test.html
+++ b/src/lab/exp10/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/objective.html b/src/lab/exp10/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp10/objective.html
+++ b/src/lab/exp10/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/prob_desc.html b/src/lab/exp10/prob_desc.html
index 3457ba01..a590535e 100755
--- a/src/lab/exp10/prob_desc.html
+++ b/src/lab/exp10/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
-						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
-						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
-						Output:6<br />
-						Input: 1 2 3 4 5 6 7 8<br />
-						Output: 1<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
-	positive integers (each &lt=10^9).
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br />
-						Output:6<br />
-						Input: 6 <br />
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-
-			</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
+						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
+						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
+						Output:6<br/>
+						Input: 1 2 3 4 5 6 7 8<br/>
+						Output: 1<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
+	positive integers (each &lt;=10^9).
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br/>
+						Output:6<br/>
+						Input: 6 <br/>
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+
+			</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/quiz.html b/src/lab/exp10/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp10/quiz.html
+++ b/src/lab/exp10/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/submission924187431.html b/src/lab/exp10/submission924187431.html
index b5ccceb7..effc7c4f 100644
--- a/src/lab/exp10/submission924187431.html
+++ b/src/lab/exp10/submission924187431.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/submission925894823.html b/src/lab/exp10/submission925894823.html
index d23a3fe3..5da111a3 100644
--- a/src/lab/exp10/submission925894823.html
+++ b/src/lab/exp10/submission925894823.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/submission936950104.html b/src/lab/exp10/submission936950104.html
index 113b68fd..8c29461b 100644
--- a/src/lab/exp10/submission936950104.html
+++ b/src/lab/exp10/submission936950104.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/test.html b/src/lab/exp10/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp10/test.html
+++ b/src/lab/exp10/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/theory.html b/src/lab/exp10/theory.html
index aa5aa2d7..07ba6d91 100755
--- a/src/lab/exp10/theory.html
+++ b/src/lab/exp10/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,22 +35,20 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p></p><h3>Problem 1</h3>
+<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -60,16 +61,17 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
+		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index e72f330d..434fd29f 100644
--- a/src/lab/exp2/Experiment.html
+++ b/src/lab/exp2/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index a00e9ba7..1acec3ed 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index 900a22be..1ed6be36 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 556fc7d1..77f4146b 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -1,2 +1,7 @@
-<pre> 
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index 2e599feb..e9a995be 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -1,19 +1,23 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare and scan N,
+-&gt;declare and scan N,
   do check the limits of N
-->declare a variable to store
+-&gt;declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
-->Use the ideas from the hints
+-&gt;Use the ideas from the hints
   section to calculate the sum of
   divisors of large number
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index d01816ad..52fe9518 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
-->declare and scan N,
+-&gt;declare and scan N,
   do check the limits of N
-->declare a variable to store
+-&gt;declare a variable to store
   the sum of factors of N and 
   keep in mind the range N for 
   choosing the data type for this 
   variable
-->sum = 0
+-&gt;sum = 0
   for i=2;i&lt;=n/i;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index 5c4ac523..1b96a68e 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
-->long long N,sum=0;
-  scanf("%lld",&N);
-->int temp = sqrt(N); 
-->sum = 0
+-&gt;long long N,sum=0;
+  scanf("%lld",&amp;N);
+-&gt;int temp = sqrt(N); 
+-&gt;sum = 0
   for i=2;i&lt;=temp;i++
 	  if(N%i==0)
 		  sum+=i+(N/i)
-->check if the sum is equal to N
+-&gt;check if the sum is equal to N
   or not
  
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 6d11bbf3..b690c5ec 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
 	
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	long long sum_factors = 0;
 	long long temp = (int)sqrt((double)n);
 	long long i;
@@ -28,3 +31,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index 2bfd964d..df5bf4c4 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp2/Hints2/Hint_0.html
+++ b/src/lab/exp2/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index 94a2d3c1..d4d2fc26 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->until a,b are not both 1
+-&gt;declare and scan a,b
+-&gt;until a,b are not both 1
   try to reduce them to 1
   by calculating q, E at each step
-->while calculating q's in the above
+-&gt;while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 94dbe047..617f0924 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
+++ b/src/lab/exp2/Hints2/Hint_2.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->
+-&gt;declare and scan a,b
+-&gt;
   while a and b are not 1 
 	 calculate q and E
 	 and re-calculate 
 	 a,b based on E.
-->while calculating q's in the above
+-&gt;while calculating q's in the above
  step print them or store all the q's
  in an array and print them
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index 08cda95e..d7ea474e 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
+++ b/src/lab/exp2/Hints2/Hint_3.html
@@ -1,14 +1,18 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan a,b
-->
+-&gt;declare and scan a,b
+-&gt;
   while a and b are not 1 
 	 q = step(a/b)
 	 E = b /(a-b*q)
 	 Re calculate 
 	 a,b based on E.
-->
+-&gt;
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 54bc0c85..7ae2b6cc 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -24,3 +27,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index 54bc0c85..7ae2b6cc 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
-	scanf("%d%d",&a,&b);
+	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
 	   as represented as a/b*/
 
@@ -24,3 +27,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index 65df8aed..bbee0b90 100644
--- a/src/lab/exp2/Introduction.html
+++ b/src/lab/exp2/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index 01f916a6..b0dfaeee 100644
--- a/src/lab/exp2/Manual.html
+++ b/src/lab/exp2/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index fdf7bf68..2170764d 100644
--- a/src/lab/exp2/Objective.html
+++ b/src/lab/exp2/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 92041156..8054cb75 100644
--- a/src/lab/exp2/Procedure.html
+++ b/src/lab/exp2/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
index c4d29576..ad2b2252 100644
--- a/src/lab/exp2/Quizzes.html
+++ b/src/lab/exp2/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/bk_index.html b/src/lab/exp2/bk_index.html
index b96e8068..87930a45 100755
--- a/src/lab/exp2/bk_index.html
+++ b/src/lab/exp2/bk_index.html
@@ -1,95 +1,99 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
-						<li><a href="lab.html">LAB</a></li>
-						<!--li><a href="quiz.html">QUIZ</a></li-->
-						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<!--li><a href="objective.html ">OBJECTIVE</a></li-->
+						<li><a href="lab.html">LAB</a></li>
+						<!--li><a href="quiz.html">QUIZ</a></li-->
+						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/default.html b/src/lab/exp2/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp2/default.html
+++ b/src/lab/exp2/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/edit_area/plugins/charmap/popup.html b/src/lab/exp2/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp2/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp2/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/furtherReadings.html b/src/lab/exp2/furtherReadings.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp2/furtherReadings.html
+++ b/src/lab/exp2/furtherReadings.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/lab.html b/src/lab/exp2/lab.html
index ebf5c798..52872e39 100755
--- a/src/lab/exp2/lab.html
+++ b/src/lab/exp2/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Beauty of Numbers  </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Beauty of Numbers  </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/lab_test.html b/src/lab/exp2/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp2/lab_test.html
+++ b/src/lab/exp2/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/objective.html b/src/lab/exp2/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp2/objective.html
+++ b/src/lab/exp2/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/previndex.html b/src/lab/exp2/previndex.html
index 144dbe7f..e3d7934c 100755
--- a/src/lab/exp2/previndex.html
+++ b/src/lab/exp2/previndex.html
@@ -1,95 +1,99 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction</h2>
-			Many students in some class or either might have been interested in Number theory as it is 
-			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
-			Hope you will love them.And yea the difference is that you may not have learnt computer programming
-			back then but you know some computer programming now  so you can use the computer :) and program the task. 
-				<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="../index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction</h2>
+			Many students in some class or either might have been interested in Number theory as it is 
+			so much fun in solving those riddles.Here we present two problems to refresh your skills. 
+			Hope you will love them.And yea the difference is that you may not have learnt computer programming
+			back then but you know some computer programming now  so you can use the computer :) and program the task. 
+				<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/prob_desc.html b/src/lab/exp2/prob_desc.html
index ea85ee29..d8bf8f45 100755
--- a/src/lab/exp2/prob_desc.html
+++ b/src/lab/exp2/prob_desc.html
@@ -1,60 +1,64 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>
-A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
-  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
-  proper positive divisors and 1 + 2 + 3 = 6.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 28<br />
-						Output: YES<br />
-						Input: 16 <br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
-non-negative integer and E is either the number 1 or an expression of the same form as above. We
-call such an expression a continued fraction. For eg., 239/51 is equivalent to
-                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
-Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
-) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains 2 positive integers separated by a space.  
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
-			must be  separated by spaces.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 239 51 <br />
-						Output: 4 1 2 5 2<br />
-						Input: 27 10<br />
-						Output: 2 1 2 2<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-					</li>	
-				</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>
+A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test,
+  whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
+  proper positive divisors and 1 + 2 + 3 = 6.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 28<br/>
+						Output: YES<br/>
+						Input: 16 <br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a
+non-negative integer and E is either the number 1 or an expression of the same form as above. We
+call such an expression a continued fraction. For eg., 239/51 is equivalent to
+                                     239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1))))))                
+Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
+) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains 2 positive integers separated by a space.  
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
+			must be  separated by spaces.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 239 51 <br/>
+						Output: 4 1 2 5 2<br/>
+						Input: 27 10<br/>
+						Output: 2 1 2 2<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+					</li>	
+				</ol></div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/quiz.html b/src/lab/exp2/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp2/quiz.html
+++ b/src/lab/exp2/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission185550271.html b/src/lab/exp2/submission185550271.html
index 83d12869..df02f05f 100644
--- a/src/lab/exp2/submission185550271.html
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/submission211548030.html b/src/lab/exp2/submission211548030.html
index a0e0753f..26676f9d 100644
--- a/src/lab/exp2/submission211548030.html
+++ b/src/lab/exp2/submission211548030.html
@@ -190,7 +190,7 @@
 	
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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@@ -190,7 +190,7 @@
 	
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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index 9f65e602..f5996149 100644
--- a/src/lab/exp2/submission604289628.html
+++ b/src/lab/exp2/submission604289628.html
@@ -190,7 +190,7 @@
 	
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index 169471b5..5f0f4b07 100644
--- a/src/lab/exp2/submission682851925.html
+++ b/src/lab/exp2/submission682851925.html
@@ -190,7 +190,7 @@
 	
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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index f3f5bb17..4438f0c3 100644
--- a/src/lab/exp2/submission785097604.html
+++ b/src/lab/exp2/submission785097604.html
@@ -190,7 +190,7 @@
 	
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/submission900840518.html b/src/lab/exp2/submission900840518.html
index ac26f55e..c063f89c 100644
--- a/src/lab/exp2/submission900840518.html
+++ b/src/lab/exp2/submission900840518.html
@@ -190,7 +190,7 @@
 	
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 </head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/submission947863660.html b/src/lab/exp2/submission947863660.html
index dd120d99..83ea61a5 100644
--- a/src/lab/exp2/submission947863660.html
+++ b/src/lab/exp2/submission947863660.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/submission972551679.html b/src/lab/exp2/submission972551679.html
index 4ebb8fb2..4cbb5062 100644
--- a/src/lab/exp2/submission972551679.html
+++ b/src/lab/exp2/submission972551679.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/submission993675339.html b/src/lab/exp2/submission993675339.html
index 8be553db..46b23a00 100644
--- a/src/lab/exp2/submission993675339.html
+++ b/src/lab/exp2/submission993675339.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp2/test.html b/src/lab/exp2/test.html
index a1c2fb03..ff26f1e9 100755
--- a/src/lab/exp2/test.html
+++ b/src/lab/exp2/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
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diff --git a/src/lab/exp2/theory.html b/src/lab/exp2/theory.html
index 73a82d12..91bef3c8 100755
--- a/src/lab/exp2/theory.html
+++ b/src/lab/exp2/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 2342bf61..30d6bff2 100644
--- a/src/lab/exp3/Experiment.html
+++ b/src/lab/exp3/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index 2998f3fc..b5e9358b 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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 	<!-- Navigation -->
diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index b35c4095..4990055f 100644
--- a/src/lab/exp3/Further Readings.html	
+++ b/src/lab/exp3/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index 4fd70b87..0fabb198 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->Implement the logic discussed in the 
+ -&gt;Implement the logic discussed in the 
   theory section
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index a054f737..d744f0c0 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->while n is not a single digit number
+ -&gt;while n is not a single digit number
     n = sum_digits(n)
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index 2b359ca0..d6f15e3e 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Take care of data type of n(parameter) 
+-&gt;Take care of data type of n(parameter) 
   while passing arguments 
 
 int sum_digits(n):
 	return n?(n%10)+sum_digits(n/10):0
 
 main(){
-->declare and scan N, take 
+-&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
 
- ->while n is not a single digit number
+ -&gt;while n is not a single digit number
     n = sum_digits(n)
 
- ->Report the result;
+ -&gt;Report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 39a6b8f5..767114c2 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
@@ -9,7 +12,7 @@
 
 int main(){
 	long long n;
-	scanf("%lld",&n);
+	scanf("%lld",&amp;n);
 	/*we go on calculating the sum of the digits 
 	  of the result;ing number until it becomes less
 	 than or equal to 9*/
@@ -25,3 +28,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
+++ b/src/lab/exp3/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index 09158cbc..f269f0c6 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- ->Implement the multiplication logic
+ -&gt;Implement the multiplication logic
    of multiplying a large number with
    a digit
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index 7104ac35..1575b952 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- ->Keep track of just the last digit
+ -&gt;Keep track of just the last digit
    generated and the carry and update
    the last digit and carry in the loop
    after multiplying last digit with 
    the units digit
 
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 3c33b030..6966af73 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-->declare and scan the units 
+-&gt;declare and scan the units 
   digit
-->Declare an array to store the 
+-&gt;Declare an array to store the 
   final answer since it may not 
   fit in a long long data type
- -> int value = (multiplication_digit*unit_digit+carry)
+ -&gt; int value = (multiplication_digit*unit_digit+carry)
     arr[index]=value%10 //store the digit
     carry = value/10
     multiplication_digit = arr[index++]
- ->Check out the termination condition 
--> return 0;
+ -&gt;Check out the termination condition 
+-&gt; return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index f205610f..aaac497b 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -23,7 +26,7 @@
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index f205610f..aaac497b 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -1,10 +1,13 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
 	int unit_digit;
-	scanf("%d",&unit_digit);
+	scanf("%d",&amp;unit_digit);
 	int arr[500];
 	int index=0;
 
@@ -23,7 +26,7 @@
 	
 	
 	int i;
-	for(i=index-2;i>=0;i--)
+	for(i=index-2;i&gt;=0;i--)
 		printf("%d",arr[i]);
 	printf("%d\n",arr[index-1]);
     
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 29658a9c..2da06cd8 100644
--- a/src/lab/exp3/Introduction.html
+++ b/src/lab/exp3/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index ca1a7920..53458764 100644
--- a/src/lab/exp3/Manual.html
+++ b/src/lab/exp3/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Objective.html b/src/lab/exp3/Objective.html
index 040e9a11..e0bc56f7 100644
--- a/src/lab/exp3/Objective.html
+++ b/src/lab/exp3/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Procedure.html b/src/lab/exp3/Procedure.html
index 53c357bc..586967e0 100644
--- a/src/lab/exp3/Procedure.html
+++ b/src/lab/exp3/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Quizzes.html b/src/lab/exp3/Quizzes.html
index db61940d..f5f4a340 100644
--- a/src/lab/exp3/Quizzes.html
+++ b/src/lab/exp3/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 4d742ebd..70ad7f5a 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,21 +82,19 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -104,28 +105,28 @@ <h2>Problem 1</h2>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
 </p>
 <p>
-N=W*1000*X+100+Y*10+Z<br>
-eg: For N=3548<br>
-N=3*1000+5*100+4*10+8<br>
-</br></br></br></p>
+N=W*1000*X+100+Y*10+Z<br/>
+eg: For N=3548<br/>
+N=3*1000+5*100+4*10+8<br/>
+<br/><br/><br/></p>
 <p>
 So, clearly the remainder after divison with 9 depends upon remainder after division with 3000, 500, 40 and 8, which are 3, 5, 4, and 8 respectively. Hence, the divisibility test for 9 states that a number is divisible by 9 if the sum digits of the number is divisible by 9. How to check whether sum of the digits is divisible by nine? Keep on doing the same test on the sum until the problem becomes trivial.
 </p>
 <p>
-So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br>
-346 gives 6 as the remainder  SUM=6<br>
-34 gives 4 as the remainder   SUM=10<br>
-3 gives 3 as remainder        SUM=13<br>
-</br></br></br></br></p>
+So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br/>
+346 gives 6 as the remainder  SUM=6<br/>
+34 gives 4 as the remainder   SUM=10<br/>
+3 gives 3 as remainder        SUM=13<br/>
+<br/><br/><br/><br/></p>
 <p>
-Now repeat the same procedure with SUM=13<br>
-13 gives 3 as the remainder   SUM=3<br>
-1 gives 1 as the remainder    SUM=4<br>
-Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br>
-</br></br></br></br></p>
+Now repeat the same procedure with SUM=13<br/>
+13 gives 3 as the remainder   SUM=3<br/>
+1 gives 1 as the remainder    SUM=4<br/>
+Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br/>
+<br/><br/><br/><br/></p>
 
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Suppose the number we require is say (X[0],X[1],...,X[N]). We dont know what X[0] ,X[1],...X[N-1] are
@@ -135,51 +136,51 @@ <h2>Problem 2</h2>
 <b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which
 we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time. So we carry on like this.
-<br> <br>
-Step1: xxxxxx4  <br>
-*4<br>
-------<br>
-6 and carry = 1<br>
-------<br>
-Step2:<br>
-xxxxx64<br>
-*4<br>
-------<br>
-56 and carry = 2<br>
-------<br>
-Step3:<br>
-xxxx564<br>
-*4<br>
-------<br>
-256 and carry = 2<br>
-------<br>
-Step4:<br>
-xxx2564<br>
-*4<br>
-------<br>
-0256 and carry = 1<br>
-------<br>
-Step5:<br>
-xx02564<br>
-*4<br>
-------<br>
-10256 and carry = 0<br>
-------<br>
-Step6:<br>
-x102564<br>
-*4<br>
-------<br>
-410256 and carry = 0<br>
-------<br>
+<br/> <br/>
+Step1: xxxxxx4  <br/>
+*4<br/>
+------<br/>
+6 and carry = 1<br/>
+------<br/>
+Step2:<br/>
+xxxxx64<br/>
+*4<br/>
+------<br/>
+56 and carry = 2<br/>
+------<br/>
+Step3:<br/>
+xxxx564<br/>
+*4<br/>
+------<br/>
+256 and carry = 2<br/>
+------<br/>
+Step4:<br/>
+xxx2564<br/>
+*4<br/>
+------<br/>
+0256 and carry = 1<br/>
+------<br/>
+Step5:<br/>
+xx02564<br/>
+*4<br/>
+------<br/>
+10256 and carry = 0<br/>
+------<br/>
+Step6:<br/>
+x102564<br/>
+*4<br/>
+------<br/>
+410256 and carry = 0<br/>
+------<br/>
 
 At step 6, you can observe that the number is exactly the circular number. So we stop doing it.
 The stopping criteria is simple. The carry must be 0 and the units digit with which we multiply
 must be same as the last digit generated in the product. Here multiplication digit is 4. Thus the output is 102564.
 
 
-</br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></p>
+<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></p>
 <p align="right"></p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -189,69 +190,56 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
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-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -302,4 +290,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp3/default.html b/src/lab/exp3/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp3/default.html
+++ b/src/lab/exp3/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/edit_area/plugins/charmap/popup.html b/src/lab/exp3/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp3/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp3/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/furtherReadings.html b/src/lab/exp3/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp3/furtherReadings.html
+++ b/src/lab/exp3/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/lab.html b/src/lab/exp3/lab.html
index 6c94e89f..19f51de0 100755
--- a/src/lab/exp3/lab.html
+++ b/src/lab/exp3/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> More on Numbers </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> More on Numbers </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/lab_test.html b/src/lab/exp3/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp3/lab_test.html
+++ b/src/lab/exp3/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/objective.html b/src/lab/exp3/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp3/objective.html
+++ b/src/lab/exp3/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/prob_desc.html b/src/lab/exp3/prob_desc.html
index 486c7906..73660d21 100755
--- a/src/lab/exp3/prob_desc.html
+++ b/src/lab/exp3/prob_desc.html
@@ -1,69 +1,72 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-				<ol>
-						<li> <h2>Problem 1:</h2>
-Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
-(This was very popular before your mod operator was invented :-)) If you add the digits of the number
-repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
-example
-
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input contains a single positive integer(&lt 10^10) (Use long long for the number)<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 12101<br />
-						Output: NO<br />
-						Input: 9009 <br />
-						Output: YES<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
-  the result is the number with its decimal digits rotated to the right, where the units digit becoming
-  its high-order digit. For example, 102564 is a circular number because of the multiplication:
-  <pre>
-				102564
-      				      *4
-				-------
-				410256
-				-------
-</pre>
-	
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-			Input contains a single postive integer N( &lt 10). 
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-				Output must contain a smallest circular positive number whose units digit must be N.
-				<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2  <br />
-						Output:105263157894736842<br />
-						Input: 4<br />
-						Output: 102564<br/>
-						<center>
-						Please note that result may not fit even in long long(64 bit integer).
-						</center>
-					
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+				<ol>
+						<li> <h2>Problem 1:</h2>
+Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not.
+(This was very popular before your mod operator was invented :-)) If you add the digits of the number
+repeatedly and finally get 9, then the given number is divisible by 9. Else it is not divisible by 9. for
+example
+
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 12101<br/>
+						Output: NO<br/>
+						Input: 9009 <br/>
+						Output: YES<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
+  the result is the number with its decimal digits rotated to the right, where the units digit becoming
+  its high-order digit. For example, 102564 is a circular number because of the multiplication:
+  <pre>				102564
+      				      *4
+				-------
+				410256
+				-------
+</pre>
+	
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+			Input contains a single postive integer N( &lt; 10). 
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+				Output must contain a smallest circular positive number whose units digit must be N.
+				<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2  <br/>
+						Output:105263157894736842<br/>
+						Input: 4<br/>
+						Output: 102564<br/>
+						<center>
+						Please note that result may not fit even in long long(64 bit integer).
+						</center>
+					
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/quiz.html b/src/lab/exp3/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp3/quiz.html
+++ b/src/lab/exp3/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission055278960.html b/src/lab/exp3/submission055278960.html
index 49cc4ab3..781ab655 100644
--- a/src/lab/exp3/submission055278960.html
+++ b/src/lab/exp3/submission055278960.html
@@ -190,7 +190,7 @@
 	
 	</script>
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp3/submission212453558.html b/src/lab/exp3/submission212453558.html
index f127067c..fffef7bc 100644
--- a/src/lab/exp3/submission212453558.html
+++ b/src/lab/exp3/submission212453558.html
@@ -190,7 +190,7 @@
 	
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp3/submission263772451.html b/src/lab/exp3/submission263772451.html
index 109f2c1f..900aa43c 100644
--- a/src/lab/exp3/submission263772451.html
+++ b/src/lab/exp3/submission263772451.html
@@ -190,7 +190,7 @@
 	
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 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission337734160.html b/src/lab/exp3/submission337734160.html
index b3789c83..d3031928 100644
--- a/src/lab/exp3/submission337734160.html
+++ b/src/lab/exp3/submission337734160.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission556366744.html b/src/lab/exp3/submission556366744.html
index 4a461f21..ef44e396 100644
--- a/src/lab/exp3/submission556366744.html
+++ b/src/lab/exp3/submission556366744.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission577197253.html b/src/lab/exp3/submission577197253.html
index f94ac9e2..a60d4b2d 100644
--- a/src/lab/exp3/submission577197253.html
+++ b/src/lab/exp3/submission577197253.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission586661222.html b/src/lab/exp3/submission586661222.html
index 08cf50cf..4dbefbb2 100644
--- a/src/lab/exp3/submission586661222.html
+++ b/src/lab/exp3/submission586661222.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission600928592.html b/src/lab/exp3/submission600928592.html
index ac6c5f85..3e8ffc77 100644
--- a/src/lab/exp3/submission600928592.html
+++ b/src/lab/exp3/submission600928592.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission607839095.html b/src/lab/exp3/submission607839095.html
index b93258da..4d69f2cd 100644
--- a/src/lab/exp3/submission607839095.html
+++ b/src/lab/exp3/submission607839095.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission705623947.html b/src/lab/exp3/submission705623947.html
index 708c909e..e6ceed22 100644
--- a/src/lab/exp3/submission705623947.html
+++ b/src/lab/exp3/submission705623947.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission737740138.html b/src/lab/exp3/submission737740138.html
index 523e7e0d..ac8e4988 100644
--- a/src/lab/exp3/submission737740138.html
+++ b/src/lab/exp3/submission737740138.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission743135170.html b/src/lab/exp3/submission743135170.html
index 5f22a9b7..6e3edaed 100644
--- a/src/lab/exp3/submission743135170.html
+++ b/src/lab/exp3/submission743135170.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission807423932.html b/src/lab/exp3/submission807423932.html
index e397e6b4..f579b496 100644
--- a/src/lab/exp3/submission807423932.html
+++ b/src/lab/exp3/submission807423932.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission812920506.html b/src/lab/exp3/submission812920506.html
index 46611117..7d38990e 100644
--- a/src/lab/exp3/submission812920506.html
+++ b/src/lab/exp3/submission812920506.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission971228782.html b/src/lab/exp3/submission971228782.html
index 8a415169..67de01f7 100644
--- a/src/lab/exp3/submission971228782.html
+++ b/src/lab/exp3/submission971228782.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/test.html b/src/lab/exp3/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp3/test.html
+++ b/src/lab/exp3/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/theory.html b/src/lab/exp3/theory.html
index a494db51..9ac97ed4 100755
--- a/src/lab/exp3/theory.html
+++ b/src/lab/exp3/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,12 +35,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
+        <p></p><h3>Problem 1</h3>
+<pre>     Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as
         N=W*1000*X+100+Y*10+Z
         eg: For N=3548
         N=3*1000+5*100+4*10+8
@@ -55,17 +57,16 @@ <h2>Theory</h2>
 	Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.
 	
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Suppose the number we require is say (X[0],X[1],...,X[N]) . We dont know what X[0] ,X[1],...X[N-1] are 
 	and also the value of N. But fortunately we know some properties  about this number with which we can find
 	out what number it is :) . We know the value of X[N]. Let take the sample input. X[N] = 4 in that case. 
 	Say we represent the product as (P[0],P[1],...,P[M]). Now X[N] = 4 and when we multiply it with 
 	<b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 	that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which 
 	we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time.So we carry on like this.
-	<br> <br> 
+	<br/> <br/> 
 	Step1: xxxxxx4
 		    *4 
 		------    
@@ -109,12 +110,13 @@ <h2>Theory</h2>
 	      
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 292ed19f..57b773f0 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 6ee3bdb8..6e0259a6 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 4b79399b..251af73e 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index eb3aaa5a..a4dda7eb 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-->declare N and scan N 
+-&gt;declare N and scan N 
 
-->declare a double variable and initialize
+-&gt;declare a double variable and initialize
   it to 0
 	 
-->Calculate the number of digits using the 
+-&gt;Calculate the number of digits using the 
   formula mentioned in theory section
 	
-->print the final result; 
+-&gt;print the final result; 
 	 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index cd20ed8d..faff0b0e 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
 main(){
--> declare N and scan N 
+-&gt; declare N and scan N 
 
--> declare a variable which can store
+-&gt; declare a variable which can store
    the number of digits and intialise to 0
 	
-->double result; = 0;
+-&gt;double result; = 0;
   for i = 1 to N
 	result+=log10(i);
 
-->print the final result;
+-&gt;print the final result;
 	 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index c52c4887..00b2e387 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -1,19 +1,23 @@
-<pre>
-#include &lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
 main(){
 
-->declare N and scan N 
+-&gt;declare N and scan N 
 
-->double result = 0
+-&gt;double result = 0
 
-->for i = 1 to N
+-&gt;for i = 1 to N
       result+=log10(i);
 
 //Use step(x)=(int)x
 
-->print the final result;
+-&gt;print the final result;
 
-->printf("%d\n"(int)result+1);
+-&gt;printf("%d\n"(int)result+1);
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 7ca4a0de..5fc1ad5c 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -1,10 +1,13 @@
-<pre>
-#include &lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
 double result = 0;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 
 for(i=1;i&lt;=N;i++)
 	result+=log10(i);
@@ -13,3 +16,4 @@
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
+++ b/src/lab/exp4/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index 37d56d23..cd756947 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -1,19 +1,23 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->int N
+	-&gt;int N
 
-	->scan N
+	-&gt;scan N
 
-	->power_five = 0
+	-&gt;power_five = 0
 
-	-> Calculate the power of
+	-&gt; Calculate the power of
 	   five	in N! 
 
-	-> print the power of five
+	-&gt; print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index 8cfbdda8..de523f62 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->int N
+	-&gt;int N
 
-	->scan N
+	-&gt;scan N
 
-	->power_five = 0
+	-&gt;power_five = 0
 
-	-> while(N){
+	-&gt; while(N){
 		power_five+=N/5;
 		N/=5;
 	 }
-	-> print the power of five
+	-&gt; print the power of five
 	   which is the No of zeroes 
 	   in N! 
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index 80c86531..994e7189 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -16,3 +19,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index 80c86531..994e7189 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
-	 scanf("%d",&N);
+	 scanf("%d",&amp;N);
 	 int power_five = 0;
 
 	 while(N){
@@ -16,3 +19,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index b2cf3fce..e7976c7f 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index 9e4e3d3c..f39f3a7f 100644
--- a/src/lab/exp4/Manual.html
+++ b/src/lab/exp4/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index 9644003b..e23c86a1 100644
--- a/src/lab/exp4/Objective.html
+++ b/src/lab/exp4/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index c9d4b39e..6f9a056d 100644
--- a/src/lab/exp4/Procedure.html
+++ b/src/lab/exp4/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quizzes.html
index 0d3be48a..c26e389f 100644
--- a/src/lab/exp4/Quizzes.html
+++ b/src/lab/exp4/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index f22a421b..21dbaa2d 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,21 +82,19 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -101,77 +102,77 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
-We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br>
-1! = 1<br>
-2! = 1*2 = 2<br>
-3! = 1*2*3 = 6<br>
-4! = 1*2*3*4 = 24<br>
-.<br>
-.<br>
-.<br>
-10! = 3628800<br>
-So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br>
-</br></br></p>
+We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
+1! = 1<br/>
+2! = 1*2 = 2<br/>
+3! = 1*2*3 = 6<br/>
+4! = 1*2*3*4 = 24<br/>
+.<br/>
+.<br/>
+.<br/>
+10! = 3628800<br/>
+So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br/>
+<br/><br/></p>
 <p>
-Similarly 53! would take 2*68=136 operations from 52!.<br>
-52! would take 2*67 = 134 operations from 51!<br>
-51! would take 2*65 = 130 operations from 50!.<br>
+Similarly 53! would take 2*68=136 operations from 52!.<br/>
+52! would take 2*67 = 134 operations from 51!<br/>
+51! would take 2*65 = 130 operations from 50!.<br/>
 
-We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br>
-</br></p>
+We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br/>
+<br/></p>
 <p>
-Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br>
+Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br/>
 
-For any N, <br>
-N=x*10<sup>exp</sup><br> 
-=&gt; log10(N) = log10(x) + exp.<br> 
-For n=95,<br>
-log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br>
-N = x*10<sup>exp</sup> , x &lt; 1 <br> 
-Taking step on both sides. <br>
-=&gt; step(log10(N)) = step(log10(x)+exp)<br>
-=&gt; step(log10(N)) = exp-1<br>
-=&gt; exp = step(log10(N))+1<br>
-=&gt; No_digits(N) = step(log10(N))+1<br>
-</br></br></p>
+For any N, <br/>
+N=x*10<sup>exp</sup><br/> 
+=&gt; log10(N) = log10(x) + exp.<br/> 
+For n=95,<br/>
+log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br/>
+N = x*10<sup>exp</sup> , x &lt; 1 <br/> 
+Taking step on both sides. <br/>
+=&gt; step(log10(N)) = step(log10(x)+exp)<br/>
+=&gt; step(log10(N)) = exp-1<br/>
+=&gt; exp = step(log10(N))+1<br/>
+=&gt; No_digits(N) = step(log10(N))+1<br/>
+<br/><br/></p>
 <p>
-Applying the above formula to calculate the number of digits of N! gives<br>
-No_digits(N!) = step(log10(N!) ) +1<br>
-=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br>
+Applying the above formula to calculate the number of digits of N! gives<br/>
+No_digits(N!) = step(log10(N!) ) +1<br/>
+=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br/>
 =&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br/></p>
 <p>
-log10(N) can be easily calculated by the log10 function in math.h.<br>
-</br></p>
+log10(N) can be easily calculated by the log10 function in math.h.<br/>
+<br/></p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
-Let us observe the zeroes in the factorial of a few numbers.<br>
+Let us observe the zeroes in the factorial of a few numbers.<br/>
 
-4!=24           (0 zeroes)<br>
-5!=120          (1 zeroes)<br>
-6!=720          (1 zeroes)<br>
-7!=5040         (1 zeroes)<br>
-8!=40320        (1 zeroes)<br>
-9!=362880       (1 zeroes)<br>
-10!=3628800     (2 zeroes)<br>
-11!-14!         (2 zeroes)<br>
-15!             (3 zeroes)<br>
-</br></br></p>
+4!=24           (0 zeroes)<br/>
+5!=120          (1 zeroes)<br/>
+6!=720          (1 zeroes)<br/>
+7!=5040         (1 zeroes)<br/>
+8!=40320        (1 zeroes)<br/>
+9!=362880       (1 zeroes)<br/>
+10!=3628800     (2 zeroes)<br/>
+11!-14!         (2 zeroes)<br/>
+15!             (3 zeroes)<br/>
+<br/><br/></p>
 <p>
-We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br>
-</br></p>
+We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br/>
+<br/></p>
 <p>
-Let p be a prime number.<br>
+Let p be a prime number.<br/>
 
-n!=1×2×…×(n−1)×n <br>
-We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br>
-Thus:<br>
-μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br>
-Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br>
-</br></br></p>
+n!=1×2×…×(n−1)×n <br/>
+We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br/>
+Thus:<br/>
+μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br/>
+Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br/>
+<br/><br/></p>
 <p align="right"></p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -181,69 +182,56 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
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-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
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+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
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+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
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+</footer>
 
 
 
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-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -294,4 +282,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp4/default.html b/src/lab/exp4/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp4/default.html
+++ b/src/lab/exp4/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/edit_area/plugins/charmap/popup.html b/src/lab/exp4/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp4/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp4/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/furtherReadings.html b/src/lab/exp4/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp4/furtherReadings.html
+++ b/src/lab/exp4/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/lab.html b/src/lab/exp4/lab.html
index 63458a6f..a29a9759 100755
--- a/src/lab/exp4/lab.html
+++ b/src/lab/exp4/lab.html
@@ -1,291 +1,294 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Factorials </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Factorials </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/lab_test.html b/src/lab/exp4/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp4/lab_test.html
+++ b/src/lab/exp4/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/objective.html b/src/lab/exp4/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp4/objective.html
+++ b/src/lab/exp4/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/prob_desc.html b/src/lab/exp4/prob_desc.html
index 4ea13cb1..f44d97d5 100755
--- a/src/lab/exp4/prob_desc.html
+++ b/src/lab/exp4/prob_desc.html
@@ -1,45 +1,49 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-		<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-
-		</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+		<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+
+		</li></ol></div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/quiz.html b/src/lab/exp4/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp4/quiz.html
+++ b/src/lab/exp4/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission010965066.html b/src/lab/exp4/submission010965066.html
index 53505641..0dea9f9d 100644
--- a/src/lab/exp4/submission010965066.html
+++ b/src/lab/exp4/submission010965066.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission099031407.html b/src/lab/exp4/submission099031407.html
index 441e47c3..bd93f05e 100644
--- a/src/lab/exp4/submission099031407.html
+++ b/src/lab/exp4/submission099031407.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission537352138.html b/src/lab/exp4/submission537352138.html
index 8daebd0a..3371f764 100644
--- a/src/lab/exp4/submission537352138.html
+++ b/src/lab/exp4/submission537352138.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission575172690.html b/src/lab/exp4/submission575172690.html
index e0267f29..c30fb6eb 100644
--- a/src/lab/exp4/submission575172690.html
+++ b/src/lab/exp4/submission575172690.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission598456765.html b/src/lab/exp4/submission598456765.html
index 0e73d31d..98138410 100644
--- a/src/lab/exp4/submission598456765.html
+++ b/src/lab/exp4/submission598456765.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission822434122.html b/src/lab/exp4/submission822434122.html
index baaf88e2..29742260 100644
--- a/src/lab/exp4/submission822434122.html
+++ b/src/lab/exp4/submission822434122.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission902808767.html b/src/lab/exp4/submission902808767.html
index 0aa537cc..d8321eca 100644
--- a/src/lab/exp4/submission902808767.html
+++ b/src/lab/exp4/submission902808767.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/test.html b/src/lab/exp4/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp4/test.html
+++ b/src/lab/exp4/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/theory.html b/src/lab/exp4/theory.html
index 4640f79e..cfeaa65f 100755
--- a/src/lab/exp4/theory.html
+++ b/src/lab/exp4/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,12 +35,11 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
+        <p></p><h3>Problem 1</h3>
+<pre>	We shall try to calculate the factorial of a number  and then find out the number of digits in it.
         1! = 1
        	2! = 1*2 = 2
 	3! = 1*2*3 = 6
@@ -69,26 +71,25 @@ <h2>Theory</h2>
 	of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10^2 which is a 2 
 	digit number . Consider N=125 , which can be written as 0.125 *10^3 which is a 3 digit number. Evidently calcula-
 	-ting the exponent of 10 in the scientific notaion and gives the number of digits.For any N ,N=x*10^exp 
-        => log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
-	N = x*10^exp , x<1 
+        =&gt; log10(N) = log10(x) + exp. for n=95 log10(95) = log10(0.95)+exp since 95 = 0.95 *10^2. 
+	N = x*10^exp , x&lt;1 
 	Taking step on both sides . 
-	=> step(log10(N)) = step(log10(x)+exp) 
-	=> step(log10(N)) = exp-1 
-	=> exp = step(log10(N))+1
-	=> No_digits(N) = step(log10(N))+1
+	=&gt; step(log10(N)) = step(log10(x)+exp) 
+	=&gt; step(log10(N)) = exp-1 
+	=&gt; exp = step(log10(N))+1
+	=&gt; No_digits(N) = step(log10(N))+1
 	
 	Applying the above formula to calculate the number of digits of N! gives
 	No_digits(N!) = step(log10(N!) ) +1
-	=> No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
-	=> No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
+	=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1
+	=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1
 
 	log10(N) can be easily calculated by the log10 function in math.h. 
 		
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Let us observe the zeroes in the factorial of a few numbers.
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Let us observe the zeroes in the factorial of a few numbers.
 	
 	4!=24		(0 zeroes)
 	5!=120		(1 zeroes)
@@ -106,24 +107,25 @@ <h2>Theory</h2>
 	Let us formalize the proof.
 	Let p be a prime number.
 
-	n!=1×2×…×(n−1)×n
-	We see that any integer m such that 0 < m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
+	n!=1×2×…×(n−1)×n
+	We see that any integer m such that 0 &lt; m ≤ n which is divisible by p^j and not p^(j+1) must be counted exactly j
 	times.
-	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
+	That is: once in ⌊n/p⌋, once in ⌊n/(p^2)⌋, …, once in ⌊n(p^j)⌋.
 	And that is all the occurrences of p as a factor of n!.
 	Thus:
-	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
+	μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p^2)⌋+⋯+⌊n/(p^j)⌋
 	
-Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
+Ex:No. of zeroes in 25!(No of occurences of 5 in 25!)=(⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6
 
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index e2ae60df..280bb757 100644
--- a/src/lab/exp5/Experiment.html
+++ b/src/lab/exp5/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index a68eaed6..81219a2e 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index 0e49479c..66a50313 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index b4585a55..8b673931 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
@@ -8,13 +11,14 @@
 
 main(){
 
-->declare and scan the string
-->do take care to scan the entire line
+-&gt;declare and scan the string
+-&gt;do take care to scan the entire line
 
-->Now implement the logic of whether a 
+-&gt;Now implement the logic of whether a 
   string is palindrome or not with some
   modifications
 
--> report the result;
+-&gt; report the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index af5ca7c4..ea95a1b0 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -13,14 +16,15 @@
 int flag=1;
 
 while(i &lt; j){
-	->Trverse from i<sup>th</sup> char to right
+	-&gt;Trverse from i<sup>th</sup> char to right
 	  until you hit a  character which is 
 	  a alphabet
-	->Trverse from j<sup>th</sup> char to left
+	-&gt;Trverse from j<sup>th</sup> char to left
 	  until you hit a  character which is a 
 	  alphabet
-	->Do  matching appropriately
+	-&gt;Do  matching appropriately
 }
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index 8892935d..fef260ca 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
@@ -11,8 +14,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j && !isAlphabet(s[i]))i++;	
-	while(i &lt; j && !isAlphabet(s[j]))j--;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
 
 	if(i&gt;=j)
 		break;
@@ -26,3 +29,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index aa5a9cc3..954768be 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
-	return (x&gt;='a' && x&lt;='z')||(x&gt;='A' && x&lt;='Z');
+	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
 main(){
 char s[1001];
@@ -12,8 +15,8 @@
 int flag=1;
 while(i &lt; j){
 	
-	while(i &lt; j && !isAlphabet(s[i]))i++;	
-	while(i &lt; j && !isAlphabet(s[j]))j--;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
+	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
 	if(i&gt;=j)
 		break;
 	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
@@ -31,3 +34,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index 688155ed..e99d90af 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -1,10 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan them 
-  ->check if 2<sup>nd</sup> string
+  -&gt;declare two strings
+  -&gt;scan them 
+  -&gt;check if 2<sup>nd</sup> string
     is a subsequence of 1<sup>st</sup> string
-  ->output the result;
+  -&gt;output the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index 4d615431..adbffcb3 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan the strings 
+  -&gt;declare two strings
+  -&gt;scan the strings 
 
-  ->As stated in the theory try to 
+  -&gt;As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n && str1[i]==str2[p]){
+	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -> output the result;
+  -&gt; output the result;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index ba9e60bd..0361f35d 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-  ->declare two strings
-  ->scan the strings 
+  -&gt;declare two strings
+  -&gt;scan the strings 
 
-  ->As stated in the theory try to 
+  -&gt;As stated in the theory try to 
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n && str1[i]==str2[p]){
+	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
 		   x[p]=i
 	           p++;
 	   }
-  -> if p==n then yes 
+  -&gt; if p==n then yes 
      else no
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 7743c840..062744fc 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
 int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&&str2[index2]!='\0';index1++){
+for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
 		if(str2[index2]==str1[index1]) 
 			index2++;
 }
@@ -17,3 +20,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index 0aa2fd2e..4097e4f1 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index 50067a03..2a979bf2 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index 9546fdfc..084a02df 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index 09b84352..02d572c1 100644
--- a/src/lab/exp5/Procedure.html
+++ b/src/lab/exp5/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index 12455891..bb96e6c4 100644
--- a/src/lab/exp5/Quizzes.html
+++ b/src/lab/exp5/Quizzes.html
@@ -59,7 +59,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index c6b659d5..e559a3cd 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
 
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,29 +82,26 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>
-					</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string.
 </p>
@@ -109,37 +109,37 @@ <h2>Problem 1</h2>
 Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that the characters in string2 must appear in the same order as in string1.
-<br>
-</br></p>
+<br/>
+<br/></p>
 <p>
-<h4> Mathematical formulation </h4>
+</p><h4> Mathematical formulation </h4>
 <p>Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
 such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct?
-B[0] occurs at X[0]<br>
-B[1] occurs at X[1]<br>
-..<br>
-..<br>
-..<br>
-B[N-1] occurs at X[N-1]<br>
-</br></br></p>
+B[0] occurs at X[0]<br/>
+B[1] occurs at X[1]<br/>
+..<br/>
+..<br/>
+..<br/>
+B[N-1] occurs at X[N-1]<br/>
+<br/><br/></p>
 <p>
 Now, we remove all other characters from A except those which appear at positions indicated by array X. Then we get string B.Thus the problem formulation is correct. The order constraint between X[i]'s is element because we want the characters in B to appear in order in A.
-<br>
-</br></p>
-<br>
+<br/>
+<br/></p>
+<br/>
 <h4> Solution</h4>
 <p>So now once we have stated the problem mathematically we would like to know how can we find
 array X subjected to the constraints mentioned.Lets see how can we find X[0]. You must be apply
 the same logic on how to find other values of array X once you are familier with X[0].
 X[0] has only one constraint to be satisfied which is A[X[0]] = B[0] . There can be many values
 of X[0] which can satisfy the above constraint. So which value should X[0] take?
-<br>
-<br>
-</br></br></p>
+<br/>
+<br/>
+<br/><br/></p>
 <h4> Proofs </h4>
 <p>
 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value, amongst all the members of set S. If |S|=1 , then it is obviously valid. So, assume |S|&gt;=2. We will deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. It can happen that B[1] is not present in [b+1 m] at all which would imply that string B cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a then it is possible that string B might be a subsequence of string A. Thus, X[0] must take the minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen as X[0]. 
@@ -149,7 +149,7 @@ <h4> Proofs </h4>
 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO.
 </p>
 <p align="right"></p>
-</br></p></br></div>						</div>
+<br/><p></p><br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -159,68 +159,55 @@ <h4> Proofs </h4>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				style="color: white" > QA Integration
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
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-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -271,4 +258,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp5/default.html b/src/lab/exp5/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp5/default.html
+++ b/src/lab/exp5/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/edit_area/plugins/charmap/popup.html b/src/lab/exp5/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp5/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp5/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/furtherReadings.html b/src/lab/exp5/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp5/furtherReadings.html
+++ b/src/lab/exp5/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/lab.html b/src/lab/exp5/lab.html
index bcba3dc9..94f7ef67 100755
--- a/src/lab/exp5/lab.html
+++ b/src/lab/exp5/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  String Operations </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/>
-<br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  String Operations </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/>
+<br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/lab_test.html b/src/lab/exp5/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp5/lab_test.html
+++ b/src/lab/exp5/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/objective.html b/src/lab/exp5/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp5/objective.html
+++ b/src/lab/exp5/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/prob_desc.html b/src/lab/exp5/prob_desc.html
index d905329e..e911214d 100755
--- a/src/lab/exp5/prob_desc.html
+++ b/src/lab/exp5/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-				<ol>
-		<li> <h2>Problem 1:</h2>
-						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
-						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
-						recognizing a palindromes like: (a) “Madam, I’m Adam.” (b) “Eve.” etc. Write a program that
-						detects palindromes. Your program should accept a string from the key board and output YES/NO.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: Madam, I'm Adam<br />
-						Output:YES<br />
-						Input: Eve.<br />
-						Output: NO<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
-							deletion of none, one or more characters.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain two strings separated by a space and size of each string is at max 10^7<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: hyderabad her<br />
-						Output: YES<br />
-						Input: hyderabad dear<br />
-						Output: NO<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-					</li>					
-				</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+				<ol>
+		<li> <h2>Problem 1:</h2>
+						A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
+						right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
+						recognizing a palindromes like: (a) “Madam, I’m Adam.� (b) “Eve.� etc. Write a program that
+						detects palindromes. Your program should accept a string from the key board and output YES/NO.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: Madam, I'm Adam<br/>
+						Output:YES<br/>
+						Input: Eve.<br/>
+						Output: NO<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
+							deletion of none, one or more characters.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain two strings separated by a space and size of each string is at max 10^7<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: hyderabad her<br/>
+						Output: YES<br/>
+						Input: hyderabad dear<br/>
+						Output: NO<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+					</li>					
+				</ol></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/quiz.html b/src/lab/exp5/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp5/quiz.html
+++ b/src/lab/exp5/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission096751967.html b/src/lab/exp5/submission096751967.html
index 063834bd..097ecc40 100644
--- a/src/lab/exp5/submission096751967.html
+++ b/src/lab/exp5/submission096751967.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/submission109007246.html b/src/lab/exp5/submission109007246.html
index 1567b17d..48fbde1f 100644
--- a/src/lab/exp5/submission109007246.html
+++ b/src/lab/exp5/submission109007246.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/submission237047629.html b/src/lab/exp5/submission237047629.html
index 8f1102e8..93bce3d1 100644
--- a/src/lab/exp5/submission237047629.html
+++ b/src/lab/exp5/submission237047629.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/submission533718369.html b/src/lab/exp5/submission533718369.html
index abef36ec..0b2cfc89 100644
--- a/src/lab/exp5/submission533718369.html
+++ b/src/lab/exp5/submission533718369.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/test.html b/src/lab/exp5/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp5/test.html
+++ b/src/lab/exp5/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/theory.html b/src/lab/exp5/theory.html
index 58830de6..b5e57c1f 100755
--- a/src/lab/exp5/theory.html
+++ b/src/lab/exp5/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,23 +35,21 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
+        <p></p><h3>Problem 1</h3>
+<pre>   A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string. Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 
 	
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that 
 	the characters in string2 must appear in the same order as in string1.
 	<h4> Mathematical formulation </h4>
 	Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
-	such that X[i] &lt X[i+1] for 0&lt=i&lt=N-2 and A[X[i]] = B[i] for 0&lt=i&lt=N-1. Why this formulation is correct? 
+	such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct? 
 	B[0] occurs at X[0] 
 	B[1] occurs at X[1]
 	..
@@ -66,26 +67,27 @@ <h4> Solution</h4>
 	of X[0] which can satisfy the above constraint. So which value should X[0] take? 
 	<h5> Proofs </h5> 
 	 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value,
-	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt=2. We will
-	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt X[0]. 
-	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt B[0]. 
+	 amongst all the members of set S. If |S|=1 , then it is obviously valid. So assume |S|&gt;=2. We will
+	 deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. 
+	 Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. 
 	 It can happen that B[1] is not present in [b+1 m] at all which would imply that string B 
 	 cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a
 	 then it is possible that string B might be a subsequence of string A.Thus X[0] must take the 
 	 minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen
-	 as X[0]. <br> <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
+	 as X[0]. <br/> <br/>          Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
 	 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO. 
 	
 	 
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index ccbc1d87..29d13075 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index 0d9e8f98..3dcb6477 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index eccb9c72..f767db95 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 286deef4..63570414 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
-	->for each possibility 
+	-&gt;termination conditions
+	-&gt;for each possibility 
 	  of choosing i items of weight
 	  2^index find the number of solutions
 	 
-	->return the total number of solutions
+	-&gt;return the total number of solutions
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index 0c9c3f65..9b9dd469 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -1,20 +1,24 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
+	-&gt;termination conditions
 	
 	for i=0;i*2^index&lt;=W;i++
-		->choosing i items each
+		-&gt;choosing i items each
 		  of weight 2^index
 	 	no_ways(W-i*2^index,index+1)
 
-	->return the total number of solutions
+	-&gt;return the total number of solutions
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index e5f6af0a..b74e65b8 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -1,21 +1,25 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
-	->termination conditions
+	-&gt;termination conditions
 	
 	int ans = 0;
 	for i=0;i*2^index&lt;=W;i++
-		->choosing i items each
+		-&gt;choosing i items each
 		  of weight 2^index
 	 	ans+=no_ways(W-i*2^index,index+1)
 
-	->return ans
+	-&gt;return ans
 	
 }
 main(){
-->scan N,W 
-->call the recursive function with appropriate
+-&gt;scan N,W 
+-&gt;call the recursive function with appropriate
   parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 2bfd964d..df5bf4c4 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index 2bfd964d..df5bf4c4 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -17,9 +20,10 @@
 }
 main(){
 	int W;
-	scanf("%d%d",&N,&W);
+	scanf("%d%d",&amp;N,&amp;W);
 
 	printf("%d\n",no_ways(W,0));
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index e5f72afd..9c869704 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
-	->try all possibilities with the given weight
+	-&gt;try all possibilities with the given weight
 	  weight[N-1] 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index 656aa72c..b2788dbc 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -1,21 +1,25 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Assume a weight of D on right PAN
+-&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
-	-> Explore the possibilities 
+	-&gt; Explore the possibilities 
 	   keeping weight on right side of PAN 
-		   ->isPossible(N-1,D+weight[N-1],weight)
+		   -&gt;isPossible(N-1,D+weight[N-1],weight)
 	   keeping the weight on left side of PAN
-	    	   ->isPossible(N-1,D-weight[N-1],weight)
+	    	   -&gt;isPossible(N-1,D-weight[N-1],weight)
 	   Not keeping the weight on any PAN
-	           ->isPossible(N-1,D,weight)
+	           -&gt;isPossible(N-1,D,weight)
 }
 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 98b6c3b1..8387b681 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
+++ b/src/lab/exp6/Hints2/Hint_3.html
@@ -1,15 +1,19 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
-->Assume a weight of D on right PAN
+-&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
-	-> Trivial/termination cases handled first
+	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight)
 }
 
 main(){
-	->scan N and weights and call isPossible
+	-&gt;scan N and weights and call isPossible
 	  function
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 2f727855..af5f5639 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -9,12 +12,12 @@
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
@@ -22,3 +25,4 @@
 	return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 8fc9e4cd..9980ff71 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
+++ b/src/lab/exp6/Hints2/Hint_5.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -9,15 +12,16 @@
 
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weights[N],i,D;
 	for(i=0;i&lt;N ;i++){
 		scanf("%d",weights+i);
 	}
-	scanf("%d",&D);
+	scanf("%d",&amp;D);
 	if(isPossible(N,D,weights))
 		puts("YES");
 	else
 		puts("NO");
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index e7c21bce..5b1508e1 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 8693014b..3b785cb0 100644
--- a/src/lab/exp6/Manual.html
+++ b/src/lab/exp6/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index d0c37ebc..34d2ae69 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index 5727b814..1877c93b 100644
--- a/src/lab/exp6/Procedure.html
+++ b/src/lab/exp6/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quizzes.html
index ae278a48..3b087754 100644
--- a/src/lab/exp6/Quizzes.html
+++ b/src/lab/exp6/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 90af4ab4..7e2949ba 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
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-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
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-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
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-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
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@@ -34,13 +37,13 @@
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-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
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@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,21 +82,19 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -104,7 +105,7 @@ <h2>Problem 1</h2>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep some weights on left side and some weights on right side and we may not use some weights at all. Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of weights between two pans is 0 we report yes. Consider the i<sup>th </sup>weight and suppose the current difference between left pan and right pan is x. If x is 0 then yes we donot choose any weight and thus return 1.
@@ -112,34 +113,34 @@ <h2>Problem 2</h2>
 <p>
 Otherwise we have three options
 </p>
-<br>
+<br/>
 <p>
 <b>Option1:</b>
 
 Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right pan becomes x - weight[i].
-<br>
+<br/>
 <b>Option2:</b>
 Put the i<sup>th</sup> weight on left pan.In which case the difference between left and right pan becomes x + weight[i].
-<br>
+<br/>
 <b>Option3:</b>
 Donot put the i<sup>th</sup> weight on either pan.In which case the difference between left and right pan remains x.
-</br></br></p>
+<br/><br/></p>
 <p>
-<br>
+<br/>
 This gives the following  <b> Recursive Function : </b>
-</br></p>
+<br/></p>
 <p>
-Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br>
-w[i],w[i+1],...,w[n-1].<br>
-Obviously, F(i,0) is 1, Otherwise<br>
-F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br>
-
-F(i+1,x) corresponds to Option3.<br>
-F(i+1,x-w[i]) corresponds to Option1.<br>
-F(i+1,x+w[i]) corresponds to Option2.<br>
-</br></br></br></br></br></br></br></p>
+Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br/>
+w[i],w[i+1],...,w[n-1].<br/>
+Obviously, F(i,0) is 1, Otherwise<br/>
+F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br/>
+
+F(i+1,x) corresponds to Option3.<br/>
+F(i+1,x-w[i]) corresponds to Option1.<br/>
+F(i+1,x+w[i]) corresponds to Option2.<br/>
+<br/><br/><br/><br/><br/><br/><br/></p>
 <p align="right"></p>
-</br></br></div>						</div>
+<br/><br/></div>						</div>
 					</div>
 			</div>
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@@ -149,68 +150,55 @@ <h2>Problem 2</h2>
 			
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+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -261,4 +249,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp6/default.html b/src/lab/exp6/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp6/default.html
+++ b/src/lab/exp6/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/edit_area/plugins/charmap/popup.html b/src/lab/exp6/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp6/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp6/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/furtherReadings.html b/src/lab/exp6/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp6/furtherReadings.html
+++ b/src/lab/exp6/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/lab.html b/src/lab/exp6/lab.html
index a43bcc73..17744aa1 100755
--- a/src/lab/exp6/lab.html
+++ b/src/lab/exp6/lab.html
@@ -1,289 +1,292 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Recursion </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Recursion </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/lab_test.html b/src/lab/exp6/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp6/lab_test.html
+++ b/src/lab/exp6/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/objective.html b/src/lab/exp6/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp6/objective.html
+++ b/src/lab/exp6/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/prob_desc.html b/src/lab/exp6/prob_desc.html
index 4baca820..138eb439 100755
--- a/src/lab/exp6/prob_desc.html
+++ b/src/lab/exp6/prob_desc.html
@@ -1,61 +1,65 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-<ol>
-						<li> <h2>Problem 1:</h2>
-					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt 2N .
-					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
-				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
-					them (put them in a state of equilibrium). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
-
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
-				weights on any side<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 4<br />
-						Output: 3 <br />
-						Input: 5 10<br />
-						Output: 14 <br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a weighing pan, n weights and a destination weight D, print “YES” or “NO” depending whether
-you can weight D using other weights given.
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						 Input begins with numbers of weights n, then n values
-denoting mass of each weight and then in the end destination weight D. 
-						<hr>
-						<center><b>Output Specification</b></center><br />
-					As the output, print “YES” if it is possible to weight D, otherwise “NO”
-						<hr>
-						<center><b>Sample Input and Output</b></center><br />
-						Input:  3 1 3 4 2<br />
-						Output: YES<br />
-						Input: 2 1 3 5 <br />
-						Output: NO <br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-		
-			</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+<ol>
+						<li> <h2>Problem 1:</h2>
+					You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt; 2N .
+					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
+				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
+					them (put them in a state of equilibrium). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
+
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
+				weights on any side<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 4<br/>
+						Output: 3 <br/>
+						Input: 5 10<br/>
+						Output: 14 <br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a weighing pan, n weights and a destination weight D, print “YES� or “NO� depending whether
+you can weight D using other weights given.
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						 Input begins with numbers of weights n, then n values
+denoting mass of each weight and then in the end destination weight D. 
+						<hr/>
+						<center><b>Output Specification</b></center><br/>
+					As the output, print “YES� if it is possible to weight D, otherwise “NO�
+						<hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input:  3 1 3 4 2<br/>
+						Output: YES<br/>
+						Input: 2 1 3 5 <br/>
+						Output: NO <br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+		
+			</li></ol></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/quiz.html b/src/lab/exp6/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp6/quiz.html
+++ b/src/lab/exp6/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission078498950.html b/src/lab/exp6/submission078498950.html
index 4b416a1f..e96265e9 100644
--- a/src/lab/exp6/submission078498950.html
+++ b/src/lab/exp6/submission078498950.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/submission376667958.html b/src/lab/exp6/submission376667958.html
index 8a5e12f9..a0a5b55d 100644
--- a/src/lab/exp6/submission376667958.html
+++ b/src/lab/exp6/submission376667958.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/submission416502186.html b/src/lab/exp6/submission416502186.html
index e0a20226..6a2ddb04 100644
--- a/src/lab/exp6/submission416502186.html
+++ b/src/lab/exp6/submission416502186.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/submission667231208.html b/src/lab/exp6/submission667231208.html
index d5473dcb..40989886 100644
--- a/src/lab/exp6/submission667231208.html
+++ b/src/lab/exp6/submission667231208.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/submission830260742.html b/src/lab/exp6/submission830260742.html
index 756c6583..068f05d2 100644
--- a/src/lab/exp6/submission830260742.html
+++ b/src/lab/exp6/submission830260742.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/test.html b/src/lab/exp6/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp6/test.html
+++ b/src/lab/exp6/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/theory.html b/src/lab/exp6/theory.html
index 0243e6af..52122e44 100755
--- a/src/lab/exp6/theory.html
+++ b/src/lab/exp6/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,18 +35,16 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
+        <p></p><h3>Problem 1</h3>
+<pre>	        Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep 
 	some weights on left side and some weights on right side and we may not use some weights at all.
 	Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing 
 	w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of 
@@ -51,7 +52,7 @@ <h2>Theory</h2>
 	current difference between left pan and right pan is x.
 	If x is 0 then yes we donot choose any weight and thus return 1.
 	Otherwise we have three options
-	<br>
+	<br/>
 	<h5>Option1:</h5>
 		Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right
 		pan becomes x - weight[i].
@@ -73,12 +74,13 @@ <h4> Recursive Function </h4>
 		F(i+1,x+w[i]) corresponds to Option2.
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index e4535295..b9a8747d 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index cc4277d6..21a67f9e 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index c5737a6d..47d39589 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index 937fd9b6..a833efe8 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-	->scan the two integers
+	-&gt;scan the two integers
 	    in the form of the strings
-	->traverse over the strings 
+	-&gt;traverse over the strings 
 	  and add digit by digit taking care
 	  of the carry and storing in the 
 	  output string.
-	->print the output string
+	-&gt;print the output string
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index 31232ec6..49c93a47 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -1,16 +1,20 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
-->scan the input strings
-->declare the output string
+-&gt;scan the input strings
+-&gt;declare the output string
 
-->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
-	->value1 = str1[i]-'0' 
-	->value2 = str1[j]-'0'
-	->store the result; output[k]
-	->update carry
+-&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+	-&gt;value1 = str1[i]-'0' 
+	-&gt;value2 = str1[j]-'0'
+	-&gt;store the result; output[k]
+	-&gt;update carry
 	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index e9091dd8..26c37e23 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
-->scan the input strings
-->declare the output string
+-&gt;scan the input strings
+-&gt;declare the output string
 
-->for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
+-&gt;for i= strlen(str1)-1,j=strlen(str2)-1; i&gt;=0||j&gt;=0 ;i--,j--
 	
-	->value1 = (i&gt;=0)?str1[i]-'0':0
-	->value2 = (j&gt;=0)?str2[j]-'0':0
-	->output[k++] = (value1+value2+carry)%10;
-	->carry = (value1+value2+carry)/10;
+	-&gt;value1 = (i&gt;=0)?str1[i]-'0':0
+	-&gt;value2 = (j&gt;=0)?str2[j]-'0':0
+	-&gt;output[k++] = (value1+value2+carry)%10;
+	-&gt;carry = (value1+value2+carry)/10;
 	
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index 5d478615..f995c753 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -1,33 +1,37 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+main(){
+	char s1[51],s2[51];
+	scanf("%s %s",s1,s2);
+	char sum[52];
+	
+	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
+	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
+                           
+		value = carry;
+		if(i&gt;=0){
+			value+=(s1[i]-'0');
+			i--;
+		}
+		if(j&gt;=0){
+			value+=(s2[j]-'0');
+			j--;
+		}
+		sum[index++]=(char)(value%10 + '0');
+		carry = value/10;
+	}
+	//take care of the cases like 99+1
+	if(carry)
+		sum[index++]='1';
+		
+	for(i=index-1;i&gt;=0;i--)
+		printf("%c",sum[i]);
+	puts("");
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index 3cc1c9c3..24a8186f 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -1,11 +1,15 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->The square root must 
+	-&gt;scan the input
+	-&gt;The square root must 
 	  be in the range [1 N]
-	->so do binary search 
+	-&gt;so do binary search 
 	  in the range [1 N]
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index c3df075a..9649e736 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->The square root must 
+	-&gt;scan the input
+	-&gt;The square root must 
 	  be in the range [1 N]
-	->so do binary search 
+	-&gt;so do binary search 
 	 in [1 N] taking the
 	 decision based on the comparison 
 	 between mid*mid and N
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index 86806181..4ef5e4c9 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -1,11 +1,14 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
 	double mid = (start+end)/2;
 
-	->termination condition
+	-&gt;termination condition
 
 	if(mid*mid &gt; N)
 		return search(start,mid-1);
@@ -18,3 +21,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index 266d0061..0453dde3 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
@@ -19,8 +22,9 @@
 
 }
 main(){
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 9e057f11..1cc2b566 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index c5a4bdf3..74c0c06c 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 930586b6..10751dbe 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index 2c41c97f..a7512fa4 100644
--- a/src/lab/exp7/Procedure.html
+++ b/src/lab/exp7/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quizzes.html
index 22f69baa..5ada23cd 100644
--- a/src/lab/exp7/Quizzes.html
+++ b/src/lab/exp7/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index 761118a9..ce699ce9 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,47 +82,45 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell. Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than 10 then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive integer &gt; 1 lies in between [1 N]. Suppose P is a number such that P*P &gt; N then the result must be in the interval [1 P-1] oterwise if P*P &lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval or conclude that mid is the square root of N.While coding do take care of the fact of precision since mid*mid may not be exactly equal N.
-<br>
-</br></p>
+<br/>
+<br/></p>
 <h3>Time complexity</h3>
-<br>
+<br/>
 <p>
 If you analyze the number of operations it takes this function to run it is easy to see that it will take logN (logN to base 2) operations. At every step of the search we chose either (start,mid-1) or (mid+1,end) which means the interval size gets reduced by half. Initially the range is N, in the next step it will become N/2, then N/4, and so after x steps the search range will be N/(2^x) which will be 1 when x is logN. So, the number of iterations is log(N).
 </p>
 <p align="right"></p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -129,68 +130,55 @@ <h3>Time complexity</h3>
 			
 	</div> <!-- content div -->
 		
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-				style="color: white" > QA Integration
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-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
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-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -241,4 +229,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp7/default.html b/src/lab/exp7/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp7/default.html
+++ b/src/lab/exp7/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/edit_area/plugins/charmap/popup.html b/src/lab/exp7/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp7/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp7/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/furtherReadings.html b/src/lab/exp7/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp7/furtherReadings.html
+++ b/src/lab/exp7/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/lab.html b/src/lab/exp7/lab.html
index 52d01799..995280d8 100755
--- a/src/lab/exp7/lab.html
+++ b/src/lab/exp7/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Advanced Atrihmatic </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Advanced Atrihmatic </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/lab_test.html b/src/lab/exp7/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp7/lab_test.html
+++ b/src/lab/exp7/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/objective.html b/src/lab/exp7/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp7/objective.html
+++ b/src/lab/exp7/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/prob_desc.html b/src/lab/exp7/prob_desc.html
index 7b85da53..146726ea 100755
--- a/src/lab/exp7/prob_desc.html
+++ b/src/lab/exp7/prob_desc.html
@@ -1,47 +1,51 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-				<div id="content">
-				<ol>
-	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-				There will be two positive integers (&lt 10^50) separated by a space.
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must contain a single number representing the sum of the two integers
-						<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 323289329329392893 3283928392839283928932329<br />
-						Output:3283928716128613258325222<br />
-						Input: 10 99<br />
-						Output: 109<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-					Find the square root of a positive integer using binary search
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
-					the judges solution will be accepted as correct <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2.2361<br />
-						Input: 25<br />
-						Output: 5.0000<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-				</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+				<div id="content">
+				<ol>
+	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+				There will be two positive integers (&lt; 10^50) separated by a space.
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must contain a single number representing the sum of the two integers
+						<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 323289329329392893 3283928392839283928932329<br/>
+						Output:3283928716128613258325222<br/>
+						Input: 10 99<br/>
+						Output: 109<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+					Find the square root of a positive integer using binary search
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
+					the judges solution will be accepted as correct <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2.2361<br/>
+						Input: 25<br/>
+						Output: 5.0000<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+				</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/quiz.html b/src/lab/exp7/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp7/quiz.html
+++ b/src/lab/exp7/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission190225116.html b/src/lab/exp7/submission190225116.html
index 445fc1a0..44dfc403 100644
--- a/src/lab/exp7/submission190225116.html
+++ b/src/lab/exp7/submission190225116.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/submission227837884.html b/src/lab/exp7/submission227837884.html
index d6f9f86c..b3d2ff79 100644
--- a/src/lab/exp7/submission227837884.html
+++ b/src/lab/exp7/submission227837884.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/submission419966738.html b/src/lab/exp7/submission419966738.html
index d4a281d1..d77bb7cb 100644
--- a/src/lab/exp7/submission419966738.html
+++ b/src/lab/exp7/submission419966738.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/submission491787357.html b/src/lab/exp7/submission491787357.html
index 81efb578..9dab52eb 100644
--- a/src/lab/exp7/submission491787357.html
+++ b/src/lab/exp7/submission491787357.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/test.html b/src/lab/exp7/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp7/test.html
+++ b/src/lab/exp7/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/theory.html b/src/lab/exp7/theory.html
index 5a30da65..0078f6c6 100755
--- a/src/lab/exp7/theory.html
+++ b/src/lab/exp7/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,21 +35,19 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
+        <p></p><h3>Problem 1</h3>
+<pre>If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell.
         Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
-	integer&gt1 lies in between [1 N]. Suppose P is a number such that P*P&gt N then the result must be in the interval 
-	[1 P-1] oterwise if P*P&lt N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive 
+	integer&gt;1 lies in between [1 N]. Suppose P is a number such that P*P&gt; N then the result must be in the interval 
+	[1 P-1] oterwise if P*P&lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive
 	integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending 
 	upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval
 	or conclude that mid is the square root of N.While coding do take care of the fact of precision since 
@@ -60,12 +61,13 @@ <h4>Time complexity</h4>
 	
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index a8363f90..00f2c454 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index 5777b329..75eee90a 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 42c8131d..1db6b354 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
+++ b/src/lab/exp8/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index 75d12f7b..10e27b05 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for each pair (i,j) find 
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for each pair (i,j) find 
 	  out how many k's exist 
 	  such that arr[i]+arr[j]&lt; arr[k]
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index 0c9dac84..fff5d9ad 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
 }
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for(i=0;i&lt; N;i++)
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index 0ce98eba..ab8920bc 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
-	->termination condition
+	-&gt;termination condition
 	int mid = (start+end)&gt;&gt;1;
 	if(arr[mid]&gt; num)
 		return (end-mid+1)+search(arr,start,mid-1,num);
@@ -10,13 +13,14 @@
 		return search(arr,mid+1,end,num);
 }
 main(){
-	->declare and scan N
-	->declare and scan the array
-	->sort the array
-	->for(i=0;i&lt; N;i++)
+	-&gt;declare and scan N
+	-&gt;declare and scan the array
+	-&gt;sort the array
+	-&gt;for(i=0;i&lt; N;i++)
 		for(j=i+1;j&lt; N;j++)
 			ans+=search(arr,0,N-1,arr[i]+arr[j]);
 
-	->print the final answer
+	-&gt;print the final answer
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index f01cfdcd..2b52d5c5 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -1,31 +1,35 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
+int compare(const void *a,const void *b){
+	return *((int *)a)&gt;*((int *)b);
+}
+int search(int *a,int start,int end,int num){
+	if(start&gt;end)
+		return 0;
+	int mid = (start+end)&gt;&gt;1 ;
+	if(a[mid]&gt;num)
+		return (end-mid+1)+search(a,start,mid-1,num);
+	else
+		return search(a,mid+1,end,num);
+}
+main(){
+	int N;
+	scanf("%d",&amp;N);
+	int arr[N];
+	int i,j;
+	for(i=0;i&lt; N;i++)
+		scanf("%d",arr+i);
+	qsort(arr,N,sizeof(int),compare);
+	int ans=0;
+	for(i=0;i&lt; N;i++)
+		for(j=i+1;j&lt; N;j++)
+			ans+=search(arr,0,N-1,arr[i]+arr[j]);
+	printf("%d\n",ans);
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index 56b2261b..13fb2156 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -1,13 +1,17 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
-	   ->update the position array
-	   ->find out how much should be the 
+	-&gt;scan the input
+	-&gt;for each index in the string
+	   -&gt;update the position array
+	   -&gt;find out how much should be the 
 	  length so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	->print the minimum length 
+	-&gt;print the minimum length 
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index dbdafe15..01aa7268 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -1,17 +1,21 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
+	-&gt;scan the input
+	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
-	        ->find out how much should be the 
+	        -&gt;find out how much should be the 
 	  lengt;h so that we get all characters in 
 	  the set using the position array mentioned
 	  in the theory
-	->print the minimum length
+	-&gt;print the minimum length
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index d8422685..fd0aa05a 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -1,8 +1,11 @@
-<pre>
-#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
-	->scan the input
-	->for each index in the string
+	-&gt;scan the input
+	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
 			if(str[i]==input_char[j])
 				pos[j]=i;
@@ -12,9 +15,10 @@
 			if(minIndex&gt;pos[j])
 				minIndex=pos[j];
 		if(minLength&gt;(index-minIndex+1))
-			->update minLength;
-	->print the minimum length
+			-&gt;update minLength;
+	-&gt;print the minimum length
 
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 440b1af2..67fce3e3 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -1,50 +1,54 @@
-<pre>
-#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 && minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+#include&lt;string.h&gt;
+
+main(){
+	int N;
+	char str[1000001];
+	scanf("%s",str);
+	scanf("%d",&amp;N);
+	if(!N)
+	{
+		printf("0\n");
+		return 0;
+	}
+	int i,j;
+	char input_char[N];
+	for(i=0;i&lt; N;i++){
+		scanf(" %c",&amp;input_char[i]);
+	}
+	
+	int pos[N];
+	for(i=0;i&lt; N;i++)
+		pos[i]=-1;
+
+	int minLength = strlen(str)+1;
+
+	for(i=0;str[i];i++){
+		for(j=0;j&lt; N;j++){
+			if(input_char[j]==str[i])
+				pos[j]=i;
+		}
+		int minValue = 1000001;
+		for(j=0;j&lt; N;j++)
+			if(minValue &gt;  pos[j])
+				minValue = pos[j];
+
+		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
+			minLength = i-minValue+1;
+		}
+
+	}
+	if(minLength==strlen(str)+1){
+		printf("-1\n");
+	}
+	else{
+		printf("%d\n",minLength);
+	}
+	return 0;
+}
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index 03ff175e..bbbfa4b9 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index 2598a850..be2cd948 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 04b60c35..fa82c86a 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
index 97eb46cb..840732a6 100644
--- a/src/lab/exp8/Procedure.html
+++ b/src/lab/exp8/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quizzes.html
index bc5ef916..166ef6cc 100644
--- a/src/lab/exp8/Quizzes.html
+++ b/src/lab/exp8/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 59fe2fd0..6166b82f 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,21 +82,19 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -105,13 +106,13 @@ <h2>Problem 1</h2>
 
 </p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
 <p>
 Consider the given string. We need to find the smallest substring which contains all the characters of the given set. Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are scanning the string from the left and we know the latest occurrences of the characters of input set in the input string, say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
 </p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -121,68 +122,55 @@ <h2>Problem 2</h2>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
-			<div class="col-md-4 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > REGISTRATION</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > LOGIN</a></div> -->
-				<!-- <div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a></div> -->
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Main_Page" class="text-a-lightgreen" style="text-decoration: underline;" >Community</a>
-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
-	                </div>
-
-			<div class="col-md-3 border-right-green-dotted" id="contact" >
-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FEEDBACK</a></div>
-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -233,4 +221,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp8/default.html b/src/lab/exp8/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp8/default.html
+++ b/src/lab/exp8/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/edit_area/plugins/charmap/popup.html b/src/lab/exp8/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp8/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp8/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/furtherReadings.html b/src/lab/exp8/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp8/furtherReadings.html
+++ b/src/lab/exp8/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/lab.html b/src/lab/exp8/lab.html
index 74073f03..8181c471 100755
--- a/src/lab/exp8/lab.html
+++ b/src/lab/exp8/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Searching and Sorting </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1>  Searching and Sorting </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/lab_test.html b/src/lab/exp8/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp8/lab_test.html
+++ b/src/lab/exp8/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/objective.html b/src/lab/exp8/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp8/objective.html
+++ b/src/lab/exp8/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/prob_desc.html b/src/lab/exp8/prob_desc.html
index a0765c00..495ae465 100755
--- a/src/lab/exp8/prob_desc.html
+++ b/src/lab/exp8/prob_desc.html
@@ -1,68 +1,72 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-							<li> <h2>Problem 1:</h2>
-You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
-problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
-are considered to be valid traiangles
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-Input contains N(&lt= 1000), followed by N numbers in the next line.The numbers
-are separated by spaces and each number is &gt 0 and &lt 10^6
-						<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-Print the number of invalid traingles that can be formed.
-						
-		<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5 <br/>
-							1 2 3 4 10<br />
-						Output:<br>
-						
-
-						</br>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>
-Given a String and a character set we need to find out the length of the 
-smallest substring which contains all the characters of the set.
-
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-The input contains a string(length&lt=10^5) made up of small letters from english language
-followed by number of characters N(&lt 26) and then N chracters in the next line 
-follow separated by spaces.
-	
-<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-The output must contain the length of the smallest substring which contains 
-all the characters from the character set. If no such substring exists report -1.
-
-						<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: applelooksred 3 e a p
-						<br />
-						Output: 5
-						<br>
-						</br>
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				
-		</div>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+							<li> <h2>Problem 1:</h2>
+You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
+problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
+are considered to be valid traiangles
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
+are separated by spaces and each number is &gt; 0 and &lt; 10^6
+						<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+Print the number of invalid traingles that can be formed.
+						
+		<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5 <br/>
+							1 2 3 4 10<br/>
+						Output:<br/>
+						
+
+						<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>
+Given a String and a character set we need to find out the length of the 
+smallest substring which contains all the characters of the set.
+
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+The input contains a string(length&lt;=10^5) made up of small letters from english language
+followed by number of characters N(&lt; 26) and then N chracters in the next line 
+follow separated by spaces.
+	
+<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+The output must contain the length of the smallest substring which contains 
+all the characters from the character set. If no such substring exists report -1.
+
+						<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: applelooksred 3 e a p
+						<br/>
+						Output: 5
+						<br/>
+						<br/>
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				
+		</li></div>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/quiz.html b/src/lab/exp8/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp8/quiz.html
+++ b/src/lab/exp8/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission046206449.html b/src/lab/exp8/submission046206449.html
index f8d747b3..5bcd312a 100644
--- a/src/lab/exp8/submission046206449.html
+++ b/src/lab/exp8/submission046206449.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
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diff --git a/src/lab/exp8/submission173316296.html b/src/lab/exp8/submission173316296.html
index 64020c32..dbd89866 100644
--- a/src/lab/exp8/submission173316296.html
+++ b/src/lab/exp8/submission173316296.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
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 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission299697804.html b/src/lab/exp8/submission299697804.html
index 54b2d5b6..f96773ee 100644
--- a/src/lab/exp8/submission299697804.html
+++ b/src/lab/exp8/submission299697804.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
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diff --git a/src/lab/exp8/submission334539183.html b/src/lab/exp8/submission334539183.html
index 8981231c..f6fd8919 100644
--- a/src/lab/exp8/submission334539183.html
+++ b/src/lab/exp8/submission334539183.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission423347682.html b/src/lab/exp8/submission423347682.html
index e1c577a7..1d6b0788 100644
--- a/src/lab/exp8/submission423347682.html
+++ b/src/lab/exp8/submission423347682.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission667158425.html b/src/lab/exp8/submission667158425.html
index 92510ecc..c61c687d 100644
--- a/src/lab/exp8/submission667158425.html
+++ b/src/lab/exp8/submission667158425.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission668064004.html b/src/lab/exp8/submission668064004.html
index 3181fc31..48295723 100644
--- a/src/lab/exp8/submission668064004.html
+++ b/src/lab/exp8/submission668064004.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission691802271.html b/src/lab/exp8/submission691802271.html
index 403d7940..7922d588 100644
--- a/src/lab/exp8/submission691802271.html
+++ b/src/lab/exp8/submission691802271.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission821300773.html b/src/lab/exp8/submission821300773.html
index 6aa026f3..681315ac 100644
--- a/src/lab/exp8/submission821300773.html
+++ b/src/lab/exp8/submission821300773.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission880470462.html b/src/lab/exp8/submission880470462.html
index 5f0be3c7..47caf9be 100644
--- a/src/lab/exp8/submission880470462.html
+++ b/src/lab/exp8/submission880470462.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission943336517.html b/src/lab/exp8/submission943336517.html
index 7eee0fa7..98db2553 100644
--- a/src/lab/exp8/submission943336517.html
+++ b/src/lab/exp8/submission943336517.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission943865944.html b/src/lab/exp8/submission943865944.html
index af0fd5f8..d1fc50f0 100644
--- a/src/lab/exp8/submission943865944.html
+++ b/src/lab/exp8/submission943865944.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission983041517.html b/src/lab/exp8/submission983041517.html
index ca1a5a88..73fe30a8 100644
--- a/src/lab/exp8/submission983041517.html
+++ b/src/lab/exp8/submission983041517.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/test.html b/src/lab/exp8/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp8/test.html
+++ b/src/lab/exp8/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/theory.html b/src/lab/exp8/theory.html
index 98e1d5d8..78182f0b 100755
--- a/src/lab/exp8/theory.html
+++ b/src/lab/exp8/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,20 +35,19 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-	Consider three numbers from the set say a,b,c. If either a+b&lt c or b+c&lt a or c+a&lt b  then (a,b,c) cannot
+        <p></p><h3>Problem 1</h3>
+<pre>	Consider three numbers from the set say a,b,c. If either a+b&lt; c or b+c&lt; a or c+a&lt; b  then (a,b,c) cannot
 	form a triangle.Lets state the problem little differently for each pair (a,b) we want to find out how many 
-	numbers c are there such that a+b &lt c. We consider each pair (a,b) and search for how many numbers are there
+	numbers c are there such that a+b &lt; c. We consider each pair (a,b) and search for how many numbers are there
 	which are greater than a+b. This can be done easily using binary search. Sort the array and 
-	consider the interval (start,end) . If arr[mid]&gt a+b then (mid-end+1) numbers are greater than a+b 
-	otherwise if arr[mid]&lt a+b then we dont add anything to the result and search in (start,mid-1). 
+	consider the interval (start,end) . If arr[mid]&gt; a+b then (mid-end+1) numbers are greater than a+b 
+	otherwise if arr[mid]&lt; a+b then we dont add anything to the result and search in (start,mid-1). 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
+<p></p>
+<p></p><h3>Problem 2</h3>
 	Consider the given string. We need to find the smallest substring which contains all the characters of the given set.
 	Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much
 	we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are 
@@ -53,16 +55,15 @@ <h2>Theory</h2>
 	say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum
 	value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
-<pre>
+<pre></pre>					
 
-</pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index 2fec8e42..1ffcd1bc 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 63768bf8..001cf1e5 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 56fb1d3c..51fd60b6 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index e69de29b..bb5e364a 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -0,0 +1,5 @@
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index b76acb02..51213bdd 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -1,18 +1,22 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
-->N means the number of weights left
-->weight is an array containing the weights
-->S we need to achieve this weight
-->Handle termination cases
-->recursive calls
+-&gt;N means the number of weights left
+-&gt;weight is an array containing the weights
+-&gt;S we need to achieve this weight
+-&gt;Handle termination cases
+-&gt;recursive calls
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index 0842b248..9bbfee1f 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -1,18 +1,21 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
-->N means the number of weights left
-->weight is an array containing the weights
-->S we need to achieve this weight
-->Handle termination cases
+-&gt;N means the number of weights left
+-&gt;weight is an array containing the weights
+-&gt;S we need to achieve this weight
+-&gt;Handle termination cases
 
-->option1. Donot keep weight[N-1] in basket
+-&gt;option1. Donot keep weight[N-1] in basket
 	which means we need to attain 
 	S from the next N-1 weights 
 	so call func(N-1,weight,S);
-->option2. keep weight[N-1] in basket 
+-&gt;option2. keep weight[N-1] in basket 
   which means we need to attain
   S-weight[N-1] next N-1 weights
   so call func(N-1,weight,S-weight[N-1]);
@@ -21,9 +24,10 @@
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index 6ba55888..cc590df0 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -1,9 +1,12 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
-->Handle termination cases
+-&gt;Handle termination cases
 
 if(!S)
 	return 1;
@@ -14,10 +17,11 @@
 }
 
 main(){
-->scan the input
-->call the function with 
+-&gt;scan the input
+-&gt;call the function with 
   appropriate parameters
 }
 
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 41e31911..529b7e4e 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
@@ -13,13 +16,13 @@
 }
 main(){
 	int N;
-	scanf("%d",&N);
+	scanf("%d",&amp;N);
 	int weight[N],i;
 	// Weight array stores the respective weights
 	for(i=0;i&lt;N ;i++)
 		scanf("%d",weight+i);
 	int Sum;
-	scanf("%d",&Sum);
+	scanf("%d",&amp;Sum);
 	int no_ways = func(N,weight,Sum);
 	if(!no_ways)
 		no_ways = -1;
@@ -28,3 +31,4 @@
 }
 
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index 8ae9dc7e..4ab88d07 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<pre>
-</pre>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index 55cd72dd..451230a9 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -1,12 +1,16 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index cfbf9b73..6471d50e 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -1,22 +1,26 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
-->Option1:
+-&gt;Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
-->Option2:
+-&gt;Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index c14f78e4..c8acea9f 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -1,29 +1,33 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
-->termination 
+-&gt;termination 
 	if(index==N)
 		return weight[index_needed_achieved]==curr_sum;
 
 if(index==index_needed_achieved)
 		return no_ways(index+1,index_needed_achieved,weight,curr_sum);
 
-->Option1:
+-&gt;Option1:
 	include weight[index] in set of weights
 	and do a recursive with the corresponding
 	paramters
-	->no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-->Option2:
+	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
+-&gt;Option2:
 	exclude weight[index] in set of weights
 	and do a recursive with the corresponding 
 	paramters
-	->no_ways(index+1,index_needed_achieved,weights,curr_sum);
+	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum);
 }
 main(){
-->declare N and scan N weights 
--> for each weight in input find in how 
+-&gt;declare N and scan N weights 
+-&gt; for each weight in input find in how 
    many ways can you achieve it
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index 48bf44a4..d1447a27 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -1,5 +1,8 @@
-<pre>
-#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
@@ -16,7 +19,7 @@
 }
 main(){
 int i;
-scanf("%d",&N);
+scanf("%d",&amp;N);
 int weights[N];
 for(i=0;i&lt; N;i++)
 	scanf("%d",weights+i);
@@ -28,3 +31,4 @@
 }
 	
 </pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index d598a1e5..1b38195c 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 20acbb4b..8fc8a443 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 838f9e52..47f4a1e3 100644
--- a/src/lab/exp9/Objective.html
+++ b/src/lab/exp9/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index 6c7c7587..c44ed7d4 100644
--- a/src/lab/exp9/Procedure.html
+++ b/src/lab/exp9/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index 7f138f19..66ef13d6 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 085dd44d..61e20e4f 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -1,32 +1,35 @@
 <!DOCTYPE html>
-<html lang="en">
-<head>
-
-    <meta charset="UTF-8">
-    <meta http-equiv="X-UA-Compatible" content="IE=edge">
-    <meta name="viewport" content="width=device-width, initial-scale=1">
-    <meta name="description" content="Welcome to Virtual Labs - A MHRD Govt of india Initiative">
-    <meta name="author" content="Virtual Labs - A MHRD Govt of india Initiative">
+<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+
+    <meta charset="utf-8"/>
+    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
+    <meta content="width=device-width, initial-scale=1" name="viewport"/>
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link rel="shortcut icon" href="../images/favicon.ico">
+     <link href="../images/favicon.ico" rel="shortcut icon"/>
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet">
+    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
 
 	<!-- Important Owl stylesheet -->
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.carousel.css">
-	<link rel="stylesheet" href="../vendors/owl-carousel/owl.theme.css">
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
 	
-	<link rel="stylesheet" href="../vendors/font-awesome/css/font-awesome.css">
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet">
-	<script type="text/javascript" src = 'tabs.js'></script>
+    <link href="../css/style.css" rel="stylesheet"/>
+	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body id="page-top" class="index">
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -34,13 +37,13 @@
 	        <div class="container-fluid">
 			            <!-- Brand and toggle get grouped for better mobile display -->
 			            <div class="navbar-header page-scroll">
-			                <button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#bs-example-navbar-collapse-1">
+			                <button class="navbar-toggle" data-target="#bs-example-navbar-collapse-1" data-toggle="collapse" type="button">
 			                    <span class="sr-only">Toggle navigation</span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img src="../images/logo-new.png" class="img-responsive main-logo" /></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -48,7 +51,7 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form method="get" action="../search-result.html">
+			                		<form action="../search-result.html" method="get">
 			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
 			                        	<input type="submit" value="" class="search-button" /> -->
 			                        </form>
@@ -56,16 +59,16 @@
 			                </ul>
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/" class="menu-a" >HOME</a>
+			                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
 			                    </li>
-			                    <li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#partner" class="menu-a" >PARTNERS</a>
-			                    </li><li class="page-scroll menu-li " >
-			                        <a href="http://vlabs.ac.in/#contact" class="menu-a" >CONTACT</a>
+		-->	                    <li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                    </li><li class="page-scroll menu-li ">
+			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -79,36 +82,34 @@
 	</header>
 
 	<div id="content">
-			<div class="container-fluid" >
+			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
-			<div class="container-fluid"  style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a href="http://vlabs.ac.in/computer-science-and-engineering-labs.html" class="sidebar-a" >Computer Science & Engineering</a> &rarr;<a href="../Introduction.html" class="sidebar-a" >Problem Solving Lab</a>&nbsp&rarr;<a href="../List of experiments.html" class="sidebar-a" >List Of Experiments</a><br/></h2>
+			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2">
-						<!--edit1-->
-<a href="Introduction.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a href="Theory.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Theory</h3></a><a href="Objective.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Objective</h3></a><a href="Experiment.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Experiment</h3></a><a href="Manual.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Manual</h3></a><a href="Quizzes.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Quizzes</h3></a><a href="Procedure.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Procedure</h3></a><a href="Further Readings.html?domain=Computer Science&lab=Problem Solving Lab" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Further Readings</h3></a><a href="http://feedback.vlabs.ac.in/" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br>
+<br/>
 <p>
 	Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the weight(w) as the first weights one by one, also taking care the the total weight(S) is not greater than reqired weight W. Those weights which make the total weight(S) greater than W are exluded from the list of avaliable weights for the next recursive. Now we only have to solve the same problem for a simpler case to get the complete solution, i.e., solving the same problem for the remaining weight, W-w, and available pool of weights now also does not have w. If accumulated weight is equal to w, then we increment the counter. If at any time, the pool of remaining weights is exhausted, then that attempt is aborted. So, our recursion function would be needing 2 variables, one containing the list of available weights and the other signifying remaining weight to be accrued.
 
 	</p>
 <p align="right"></p>
-<br>
+<br/>
 <h2>Problem 2</h2>
-<br>
+<br/>
 <p>
 	For each weight in the input we keep it on right pan and try using other weights to balance it. Let us say we have kept i<sup>th</sup> weight on the right pan, out task is now to keep weights on left side of the pan so that the sum of the weights on left side of the pan is equal to the weight on the right side,i.e weight[i]. For each weight W[k], we can keep it either on left pan or we donot to keep it at all. Make sure to disregard the weight when k is equal to i because that weight is already on right side.
 	</p>
@@ -117,15 +118,15 @@ <h3>Recursive formulation </h3>
 	Let F(index,i,S) denotes the number of ways in which we can obtain weight[i] using weights from weight[index], weight[index+1], weight[index+2],..., weight[n-1] and currently because of choosing some weights from weight[0], weight[1],..., weight[index-1] the sum of the weights has become S. So we need to achieve weight[i]-S by choosing some weights from weight[index], weight[index+1],..., weight[n-1].
 	</p>
 <p>
-	A pseudo code would look like: <br>
+	A pseudo code would look like: <br/>
 
-	F(index,i,S) = F(index+1,i,S)   If index=i <br>
-	= 1             If index=N and S=weight[i] <br>
-	= 0             If index=N and S!=weight[i]<br>
-	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br>
-</br></br></p>
+	F(index,i,S) = F(index+1,i,S)   If index=i <br/>
+	= 1             If index=N and S=weight[i] <br/>
+	= 0             If index=N and S!=weight[i]<br/>
+	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br/>
+<br/><br/></p>
 <p align="right"></p>
-</br></div>						</div>
+<br/></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
@@ -135,68 +136,55 @@ <h3>Recursive formulation </h3>
 			
 	</div> <!-- content div -->
 		
-	<footer>
-		<div class="container-fluid footer-div" style="background: #404040; margin-top: 40px;  padding: 20px;">
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-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Updates</h2>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Download" class="text-normal-gray-small nounderline" style="color: white" > Lab Integration Kit Releases</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/First_Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" >First Integration Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/Summer_Sprint_Integration_workshop" class="text-normal-gray-small nounderline" style="color: white" > Summer Integration Workshop at IIT Guwahati</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/QA/Integration_workshop"
-				class="text-normal-gray-small nounderline"
-				style="color: white" > QA Integration
-				Workshop at IIIT Hyderabad</a>
-				<a href="http://community.virtual-labs.ac.in/w/index.php/A_new_set_of_25_Virtual_Labs_on_Portable_Media" class="text-normal-gray-small nounderline" style="color: white" > A new set of 25 Virtual Labs on Portable Media</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-<!-- 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">Nodal Centers</h2>
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-				<a href="http://www.sakshat.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Sakshat Portal</a>
-				<!--<a href="http://118.102.191.38/feedback/Registration.html" class="text-a-lightgreen" style="text-decoration: underline;" > Nodal Center</a>-->
-				<a href="http://outreach.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Outreach Portal</a>
-				<a href="../faq.html" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a>
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-
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-<!-- 				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > FAQ</a></div>
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-				<div><a href="#" class="text-a-lightgreen" style="text-decoration: underline;" > SAKSHAT PORTAL</a></div> -->
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Contact us</h2>
-				<a href="http://feedback.vlabs.ac.in/" class="text-a-lightgreen" style="text-decoration: underline;" > Feedback</a>
-				<a class="text-a-lightgreen"style="text-decoration: underline;" href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a>
-			</div>
-
-			<div class="col-md-2 border-right-green-dotted" >
-				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/fb.png"  style="border-radius: 50%;"/> </a>
-				<a href="https://twitter.com/TheVirtualLabs" class="text-a-lightgreen nounderline"   target="_blank"> <img src="../images/social/twitter.png"  style="border-radius: 50%;"/></a>
-				<a href="http://linkedin.com" class="text-a-lightgreen nounderline"  target="_blank" > <img src="../images/social/linkedin.png" style="border-radius: 50%;" /></a>
-				<a href="https://www.youtube.com/watch?v=mVBYNXLaDdg"
-				class="text-a-lightgreen nounderline"
-				target="_blank" >
-				<img src="../images/social/youtube.png"
-				style="border-radius: 50%; width: 38px;
-				height: 38px" /></a>
-
-			</div>
-
-
- 		</div>
-	</footer>
+	<footer id="footer"><div class="footer-top" id="contact">
+  <div class="container">
+    <div class="row">
+      <div class="col-lg-4 col-md-6">
+        <h4>Community Links</h4>
+        <p>
+	  <a href="http://www.sakshat.ac.in/">Sakshat Portal</a>
+	</p>
+        <p>
+	  <a href="http://outreach.vlabs.ac.in/">Outreach Portal</a>
+	</p>
+        <p>
+	  <a href="http://vlab.co.in/faq">FAQ : Virtual Labs</a>
+	</p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+        <h4>Contact Us</h4>
+	<p> <strong>Phone:</strong> General Information : 011-26582050 </p>
+	<p> <strong>Email:</strong> support@vlab.co.in </p>
+      </div>
+      <div class="col-lg-4 col-md-6">
+	<h4>Follow Us</h4>
+	<div class="social-links">
+	  <a class="twitter" href="https://twitter.com/TheVirtualLabs" style="background: #55acee;">
+	    <i class="fa fa-twitter"></i>
+	  </a>
+	  <a class="facebook" href="https://www.facebook.com/Virtual-Labs-IIT-Delhi-301510159983871/" style="background: #3b5998;">
+	    <i class="fa fa-facebook"></i>
+	  </a>
+	  <a class="google-plus" href="https://www.youtube.com/watch?v=asxRaOgk6a0" style="background: #e52d27;">
+	    <i class="fa fa-youtube"></i>
+	  </a>
+	  <a class="linkedin" href="https://in.linkedin.com/in/virtual-labs-008ba9136" style="background: #2867B2;">
+	    <i class="fa fa-linkedin"></i>
+	  </a>
+	</div>
+      </div>
+    </div>
+  </div>
+</div>
+</footer>
 
 
 </div> <!-- top div -->
 
-</body>
 
 
-	<!-- jQuery -->
+
+	
     <script src="../js/jquery.js"></script>
 
     <!-- Bootstrap Core JavaScript -->
@@ -247,4 +235,7 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">
 	});
 	</script>
 	
-</html>
+
+
+
+</body><!-- jQuery --></html>
\ No newline at end of file
diff --git a/src/lab/exp9/default.html b/src/lab/exp9/default.html
index 1c8a55c7..13e6895b 100644
--- a/src/lab/exp9/default.html
+++ b/src/lab/exp9/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/edit_area/plugins/charmap/popup.html b/src/lab/exp9/edit_area/plugins/charmap/popup.html
index 4b549db8..d792185e 100755
--- a/src/lab/exp9/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp9/edit_area/plugins/charmap/popup.html
@@ -1,24 +1,27 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" >
-<head>
-<title>{$charmap_title}</title>
-<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
-<link rel="stylesheet" type="text/css" href="css/charmap.css" />
-<script language="Javascript" type="text/javascript" src="jscripts/map.js">
-</script>
-</head>
-<body onload='map_load()'>
-<div id='preview_code' class='preview'></div>
-<div id='preview_char' class='preview'></div>
-<h1>{$charmap_title}:</h1>
-<select id='select_range' onchange='renderCharMapHTML()' title='{$charmap_choose_block}'>
-</select>
-<div id='char_list'>
-
-</div>
-
-
-
-</body>
-</html>
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<title>{$charmap_title}</title>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<script language="Javascript" src="jscripts/map.js" type="text/javascript">
+</script>
+</head>
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<div class="preview" id="preview_code"></div>
+<div class="preview" id="preview_char"></div>
+<h1>{$charmap_title}:</h1>
+<select id="select_range" onchange="renderCharMapHTML()" title="{$charmap_choose_block}">
+</select>
+<div id="char_list">
+
+</div>
+
+
+
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/furtherReadings.html b/src/lab/exp9/furtherReadings.html
index 5cf515c3..2706fedc 100755
--- a/src/lab/exp9/furtherReadings.html
+++ b/src/lab/exp9/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/lab.html b/src/lab/exp9/lab.html
index e1545fad..44bd264e 100755
--- a/src/lab/exp9/lab.html
+++ b/src/lab/exp9/lab.html
@@ -1,290 +1,293 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<link href="thickbox/thickbox.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-<!-- Google Analytics script starts here -->
-<script>
-  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
-  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
-  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
-  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
-
-  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
-  ga('send', 'pageview');
-
-</script>
-<!-- Google Analytics script ends here -->
-</head>
-<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Permutation </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-<div id="content">
-<div id="contentLeft">
-<span>
-<form id="file_upload_form" name="file_upload_form" method="post" enctype="multipart/form-data" action="upload.php">
-CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><br>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<hr>
-<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
-
-<form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" style="height: 400px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<a href="prob_desc.html?height=500&width=650" class="thickbox"><img src="images/info.jpg" height=20px width=20px></a>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
- <input type="hidden" value="0" name="highHint" id="highHint_id"/>
-</div> <!--contentLeft -->
-
-<div id="contentRight">
-   <h4> HINTS </h4><br>
-   <div id="hintBox">
-
-   </div>
-   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value='0'>Hint Level 0</option>
-	<option value='1'>Hint Level 1</option>
-	<option value='2'>Hint Level 2</option>
-	<option value='3'>Hint Level 3</option>
-	<option value='4'>Hint Level 4</option>
-   </select>
-   <span name>Highest Level Hint used: <span id="highHint">0</span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+		<script src="jquery.js" type="text/javascript"></script>
+		<script src="thickbox/thickbox.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
+			,load_callback: "my_load"
+                        ,save_callback: "my_save"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+	$(document).ready(function() {
+		initThickbox();
+	
+	});
+		
+		// callback functions
+		function my_save(id, content){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			content = content.replace('#','!$!');
+			var url="save.php?content="+content; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					 window.open("upload/savedFile.txt",'Download');
+					
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+		}
+	
+		function getContent(){
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var url="upload/file.txt"; //the backend file to fetch hint from
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					editAreaLoader.setValue("editArea", xmlhttp.responseText);
+
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+	
+		}	
+		function my_load(id){
+			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
+			var x = document.file_upload_form.file;
+			if(x.value==""){
+				alert("Please Select a File first and then click this button again.");
+				document.getElementById("file").click();	
+				return;
+			}
+			document.file_upload_form.submit();
+			setTimeout("getContent()",1000);
+			
+			
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC1 = 0;
+		var hintC2 = 0;
+		var N = 5;
+		function generateHint(selObj){
+			var hintNo = selObj.options[selObj.selectedIndex].value;
+			if(hintNo ==0){
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintNo;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintNo;
+					if(qno == 1 && hintC1<hintNo){
+						hintC1 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC1;
+						document.getElementById("highHint_id").value = hintC1;
+					}
+					if(qno == 2 && hintC2<hintNo){
+						hintC2 = hintNo;
+						document.getElementById("highHint").innerHTML = hintC2;
+						document.getElementById("highHint_id").value = hintC2;
+					}
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+		
+	
+	</script>
+<!-- Google Analytics script starts here -->
+<script>
+  (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
+  (i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
+  m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
+  })(window,document,'script','//www.google-analytics.com/analytics.js','ga');
+
+  ga('create', 'UA-42255654-1', 'virtual-labs.ac.in');
+  ga('send', 'pageview');
+
+</script>
+<!-- Google Analytics script ends here -->
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> Permutation </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+<div id="content">
+<div id="contentLeft">
+<span>
+<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
+CHOOSE FILE TO LOAD: 
+<input id="file" name="file" size="20" type="file"/> 
+<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
+</form>
+</span>
+
+<hr/>
+<p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
+
+<form action="judge.py" method="get" name="judge">
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
+	</fieldset>
+Language                              ProblemNo
+
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+ <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+</form></div> <!--contentLeft -->
+
+<div id="contentRight">
+   <h4> HINTS </h4><br/>
+   <div id="hintBox">
+
+   </div>
+   <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
+   <select name="hintGenerate" onchange="generateHint(this)">
+	<option value="0">Hint Level 0</option>
+	<option value="1">Hint Level 1</option>
+	<option value="2">Hint Level 2</option>
+	<option value="3">Hint Level 3</option>
+	<option value="4">Hint Level 4</option>
+   </select>
+   <span name="">Highest Level Hint used: <span id="highHint">0</span></span>
+   
+   
+</div> <!--contentRight -->
+
+				</div>
+			</article>
+			<div id="footer">
+			</div>
+		
+			
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/lab_test.html b/src/lab/exp9/lab_test.html
index 12c13149..01b12563 100755
--- a/src/lab/exp9/lab_test.html
+++ b/src/lab/exp9/lab_test.html
@@ -1,148 +1,151 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 50%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="SubmissionID" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input name="SubmissionID" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/objective.html b/src/lab/exp9/objective.html
index 5cca27b8..fae6be70 100755
--- a/src/lab/exp9/objective.html
+++ b/src/lab/exp9/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/prob_desc.html b/src/lab/exp9/prob_desc.html
index 3457ba01..a590535e 100755
--- a/src/lab/exp9/prob_desc.html
+++ b/src/lab/exp9/prob_desc.html
@@ -1,57 +1,61 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-
-				<div id="content">
-	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
-Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
-						are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”,
-						then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus the
-						answer to be printed out for the length of ” 10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5
-						4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
-
-					<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt= 10^9  and the length of the input sequence is &lt= 10^7 <br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-					Print the length of the longest continuous decreasing subsequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br />
-						Output:6<br />
-						Input: 1 2 3 4 5 6 7 8<br />
-						Output: 1<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt=1000) and the next line contains N 
-	positive integers (each &lt=10^9).
-			<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-	Print the length of the longest increasing subsequence of the given input sequence <br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br />
-						Output:6<br />
-						Input: 6 <br />
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						</li>
-
-			</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+
+				<div id="content">
+	<ol>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
+						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
+						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
+						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
+						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
+
+					<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
+						Output:6<br/>
+						Input: 1 2 3 4 5 6 7 8<br/>
+						Output: 1<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
+						<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
+	positive integers (each &lt;=10^9).
+			<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 
+						10<br/>
+						1 2 9 4 7 3 11 8 14 6<br/>
+						Output:6<br/>
+						Input: 6 <br/>
+						       1 3 2 10 4 5<br/>
+						Output: 4<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						</li>
+
+			</ol></div>
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index 08bc937f..77498fd9 100755
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -1,84 +1,88 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
-		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	</head>
-	<body>
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br />
-						<ol>
-						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
-						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
-						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
-						<li>Factorials are also used extensively in probability theory.</li>
-						<li>Factorials can be useful to facilitate expression manipulation.</li>
-						</ol>
-						<br />Here we present two problems based on factorials.<br />
-						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of digits in the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:2<br />
-						Input: 52<br />
-						Output: 68<br/>
-						<hr />
-						</li>
-						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
-						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br /><br /><hr />
-						<center><b>Input Specification</b></center><br />
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br /><br /><hr />
-						<center><b>Output Specification</b></center><br />
-						Output must be the number of zeroes at the end of the factorial of the given number.<br /><br /><hr />
-						<center><b>Sample Input and Output</b></center><br />
-						Input: 5<br />
-						Output:1<br />
-						Input: 25<br />
-						Output: 6<br/>
-
-						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
-						</p> 
-						
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+		<title>OJ</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	</head>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+					<h2>Introduction </h2>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						</p><ol>
+						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
+						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
+						<li>Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.</li>
+						<li>Factorials are also used extensively in probability theory.</li>
+						<li>Factorials can be useful to facilitate expression manipulation.</li>
+						</ol>
+						<br/>Here we present two problems based on factorials.<br/>
+						<ol>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:2<br/>
+						Input: 52<br/>
+						Output: 68<br/>
+						<hr/>
+						</li>
+						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
+						</li>-->
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
+						<center><b>Input Specification</b></center><br/>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
+						<center><b>Output Specification</b></center><br/>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
+						<center><b>Sample Input and Output</b></center><br/>
+						Input: 5<br/>
+						Output:1<br/>
+						Input: 25<br/>
+						Output: 6<br/>
+
+						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
+						<p></p> 
+						
+				</li></ol></div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission045226925.html b/src/lab/exp9/submission045226925.html
index 5923927d..215d3681 100644
--- a/src/lab/exp9/submission045226925.html
+++ b/src/lab/exp9/submission045226925.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp9/submission093704599.html b/src/lab/exp9/submission093704599.html
index 41e5d8d7..89dd08b7 100644
--- a/src/lab/exp9/submission093704599.html
+++ b/src/lab/exp9/submission093704599.html
@@ -190,7 +190,7 @@
 	
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp9/submission188928472.html b/src/lab/exp9/submission188928472.html
index d68fa609..a89f7ee7 100644
--- a/src/lab/exp9/submission188928472.html
+++ b/src/lab/exp9/submission188928472.html
@@ -190,7 +190,7 @@
 	
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission293677335.html b/src/lab/exp9/submission293677335.html
index 0b5b14e1..cb9f0ecd 100644
--- a/src/lab/exp9/submission293677335.html
+++ b/src/lab/exp9/submission293677335.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission475438203.html b/src/lab/exp9/submission475438203.html
index f1e256d2..e8eea1e3 100644
--- a/src/lab/exp9/submission475438203.html
+++ b/src/lab/exp9/submission475438203.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission535104989.html b/src/lab/exp9/submission535104989.html
index eb8bf2d2..cfb4c423 100644
--- a/src/lab/exp9/submission535104989.html
+++ b/src/lab/exp9/submission535104989.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission622055803.html b/src/lab/exp9/submission622055803.html
index ba44747a..7eb93d34 100644
--- a/src/lab/exp9/submission622055803.html
+++ b/src/lab/exp9/submission622055803.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission857090763.html b/src/lab/exp9/submission857090763.html
index f1e256d2..e8eea1e3 100644
--- a/src/lab/exp9/submission857090763.html
+++ b/src/lab/exp9/submission857090763.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission906685525.html b/src/lab/exp9/submission906685525.html
index d08bd177..b7a3228f 100644
--- a/src/lab/exp9/submission906685525.html
+++ b/src/lab/exp9/submission906685525.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission910376433.html b/src/lab/exp9/submission910376433.html
index a63693cc..1b7a548a 100644
--- a/src/lab/exp9/submission910376433.html
+++ b/src/lab/exp9/submission910376433.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission957349292.html b/src/lab/exp9/submission957349292.html
index 10c42ff2..b3365290 100644
--- a/src/lab/exp9/submission957349292.html
+++ b/src/lab/exp9/submission957349292.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/test.html b/src/lab/exp9/test.html
index 21c00d53..00de5c30 100755
--- a/src/lab/exp9/test.html
+++ b/src/lab/exp9/test.html
@@ -1,196 +1,199 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="fr" >
-<head>
-	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript" src="edit_area/edit_area_full.js"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-		
-		// callback functions
-		function my_save(id, content){
-			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
-		}
-		
-		function my_load(id){
-			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC = 1;
-		var N = 5;
-		function generateHint(){
-			if(hintC > N){
-				alert("No further hints will be given");
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintC;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintC;
-					hintC++;
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-	
-	</script>
-</head>
-<body>
-<form action="judge.py" method="get">
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> <a href="index.html"> Virtual Labs </a> </h1>
-			</div>
-
-			<div id="help-menu">
-			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
-			</div>
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-		<nav id="head-nav">
-					<ul>
-						<li><a href="index.html">Introduction</a></li>
-						<li><a href="theory.html">THEORY</a></li>
-						<li><a href="objective.html ">OBJECTIVE</a></li>
-						<li><a href="lab.html">LAB</a></li>
-						<li><a href="quiz.html">QUIZ</a></li>
-						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
-					</ul>
-		</nav>
-				<div id="content">
-<div id="contentLeft">
-<p>Please insert your code here</p>
-<fieldset>
-		<textarea id="editArea" style="height: 250px; width: 100%;" name="code">
-		</textarea>
-	</fieldset>
-<br/>
-Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
-<br>
-<select name="language" id="codeId">
-<option value="c"> C (gcc 4.3.2) </option>
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-</select>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
-&nbsp;&nbsp;&nbsp;&nbsp;
-
-<select name="codeId"  id="probId" >
-<option value="Problem1"> 1  </option>
-<option value="Problem2"> 2  </option>
-</select>
-<input type="hidden" name="hintC" id="hintCount" value="0"/>
- &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Compile" name="type"/>
- &nbsp; &nbsp; &nbsp; 
- <input type="submit" value="Run" name="type"/>
-
-</div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4>
-   <div id="hintBox">	
-   </div>
-   <button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button>
-   
-   
-</div> <!--contentRight -->
-				</div>
-			</article>
-			<div id="footer">
-			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
-			</div>
-		</div>
-	</form>		
-
-	
-</body>
-</html>
+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+	<title>EditArea - the code editor in a textarea</title>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<script src="jqminmax.js" type="text/javascript"></script>
+	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
+	<script language="Javascript" type="text/javascript">
+		// initialisation
+		editAreaLoader.init({
+			id: "editArea"	// id of the textarea to transform	
+			,start_highlight: true
+			,allow_toggle: true
+			,word_wrap: true
+			,language: "en"
+			,syntax: "c"	
+			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help"
+			,syntax_selection_allow: "c,cpp"
+			,is_multi_files: false
+			,EA_load_callback: "editAreaLoaded"
+			,show_line_colors: true
+		});
+		
+		// callback functions
+		function my_save(id, content){
+			alert("Here is the content of the EditArea '"+ id +"' as received by the save callback function:\n"+content);
+		}
+		
+		function my_load(id){
+			editAreaLoader.setValue(id, "The content is loaded from the load_callback function into EditArea");
+		}
+		
+		function test_setSelectionRange(id){
+			editAreaLoader.setSelectionRange(id, 100, 150);
+		}
+		
+		function test_getSelectionRange(id){
+			var sel =editAreaLoader.getSelectionRange(id);
+			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
+		}
+		
+		function test_setSelectedText(id){
+			text= "[REPLACED SELECTION]"; 
+			editAreaLoader.setSelectedText(id, text);
+		}
+		
+		function test_getSelectedText(id){
+			alert(editAreaLoader.getSelectedText(id)); 
+		}
+		
+		function editAreaLoaded(id){
+			if(id=="example_2")
+			{
+				open_file1();
+				open_file2();
+			}
+		}
+		
+		function open_file1()
+		{
+			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function open_file2()
+		{
+			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
+			editAreaLoader.openFile('example_2', new_file);
+		}
+		
+		function close_file1()
+		{
+			editAreaLoader.closeFile('example_2', "to\\ é # € to");
+		}
+		
+		function toogle_editable(id)
+		{
+			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
+		}
+
+		/* --------HINTS ---------*/
+		var hintC = 1;
+		var N = 5;
+		function generateHint(){
+			if(hintC > N){
+				alert("No further hints will be given");
+				return;
+			}
+			xmlhttp=new XMLHttpRequest();
+			if(xmlhttp==null)
+			{
+				alert("Your Browser does not support AJAX... Pls Update it!! ");
+				return;
+			}
+			var qObj = document.getElementById("probId");
+			var qno = qObj.options[qObj.selectedIndex].text;
+			var url="getHint.py"; //the backend file to fetch hint from
+			url = url+"?qNo="+qno+"&hintNo="+hintC;
+			url=url+"&sid="+Math.random();
+			xmlhttp.onreadystatechange=function()
+			{
+				if(xmlhttp.readyState==4 && xmlhttp.status==200)
+				{
+					var obj = document.getElementById("hintBox");
+					obj.innerHTML = xmlhttp.responseText;
+					document.getElementById("hintCount").value = hintC;
+					hintC++;
+				}	
+			}
+			xmlhttp.open("GET",url,true);
+			xmlhttp.send();     
+
+
+		}
+	
+		/* ----------------------- */
+	
+	</script>
+</head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<form action="judge.py" method="get">
+		<header id="site_head">
+		<div class="header_cont"> <!-- 960px header-->
+			<!-- LOGO of the company-->
+			<div id="logo">
+			<h1> <a href="index.html"> Virtual Labs </a> </h1>
+			</div>
+
+			<div id="help-menu">
+			<!--h1> <a href="../help/index.html"> Help </a> </h1-->
+			</div>
+		</div>
+			<!-- Menu -->
+	</header>
+	<article id="main_content"> <!--960px limit -->
+		<header id="main-title">
+			<!--h1>OJ ... Happily judging your solution</h1-->
+		</header>	
+		<nav id="head-nav">
+					<ul>
+						<li><a href="index.html">Introduction</a></li>
+						<li><a href="theory.html">THEORY</a></li>
+						<li><a href="objective.html ">OBJECTIVE</a></li>
+						<li><a href="lab.html">LAB</a></li>
+						<li><a href="quiz.html">QUIZ</a></li>
+						<li><a href="furtherReadings.html">FURTHER READINGS</a></li>
+					</ul>
+		</nav>
+				<div id="content">
+<div id="contentLeft">
+<p>Please insert your code here</p>
+<fieldset>
+		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
+	</fieldset>
+<br/>
+Language                              ProblemNo
+<br/>
+<select id="codeId" name="language">
+<option value="c"> C (gcc 4.3.2) </option>
+<option value="cpp"> C++ (g++ 4.3.2) </option>
+</select>
+                    
+    
+
+<select id="probId" name="codeId">
+<option value="Problem1"> 1  </option>
+<option value="Problem2"> 2  </option>
+</select>
+<input id="hintCount" name="hintC" type="hidden" value="0"/>
+               
+ <input name="type" type="submit" value="Compile"/>
+       
+ <input name="type" type="submit" value="Run"/>
+
+</div> <!--contentLeft -->
+<div id="contentRight">
+   <h4> HINTS </h4>
+   <div id="hintBox">	
+   </div>
+   <button id="genHint" onclick="generateHint();" type="button" value="Hint">Generate Hint</button>
+   
+   
+</div> <!--contentRight -->
+				</div>
+			</article>
+			<div id="footer">
+			  Developed By <a href="http://students.iiit.ac.in/~nasini">Madhava Rao Nasini</a> 
+			</div>
+		
+	</form>		
+
+	
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/theory.html b/src/lab/exp9/theory.html
index aa5aa2d7..07ba6d91 100755
--- a/src/lab/exp9/theory.html
+++ b/src/lab/exp9/theory.html
@@ -1,12 +1,15 @@
-<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html>
-	<head>
-		<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
+<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
 		<title>OJ</title>
-		<link href="default.css" rel="stylesheet" media="screen" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body>
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -32,22 +35,20 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 						<!--li><a href="quiz.html">QUIZ</a></li-->
 						<!--li><a href="furtherReadings.html">FURTHER READINGS</a></li-->
 					</ul>
-		</nav>
+		</nav>
 				<div id="content">
         <h2>Theory</h2>
-        <p><h3>Problem 1</h3>
-<pre>
-This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
+        <p></p><h3>Problem 1</h3>
+<pre>This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to
 solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just ne
 ed to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the curr
 rent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the pre
 vious number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 
 </pre>       
-</p>
-<p><h3>Problem 2</h3>
-<pre>
-	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
+<p></p>
+<p></p><h3>Problem 2</h3>
+<pre>	This is a very famous problem.Its known as longest increasing subsequence problem.Let us consider a
 	naive approach of solving this problem. For every subsequence if it is a increasing subsequence we 
 	try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity
 	of this appraoch it is clear that it is goin to take 2^N * N operations.So if N = 30 , this approach would
@@ -60,16 +61,17 @@ <h2>Theory</h2>
 	<h4>Recursive formulation </h4>
 		Now the task is to find a recursive formula for best[i]. Assume we know the values of best[0],best[1],...,
 		best[i-1] and now out task is to find best[i]. Seq[i] can form a increasing subsequence with some Seq[j]
-		if Seq[i] &gt Seq[j] and j &lt i. Thus the recusive formula is 
-		<b> best[i] = max(1,best[j]+1|j&lt i && Seq[i]>Seq[j]) </b>
+		if Seq[i] &gt; Seq[j] and j &lt; i. Thus the recusive formula is 
+		<b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </pre>					
 
-
-				</div>
-			</article>
-			<div id="footer">
-			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
-			</div>
-		</div>
-	</body>
-</html>
+
+				</div>
+			</article>
+			<div id="footer">
+			<!---GPL License . Designed By <a href="http://students.iiit.ac.in/~rajatgoel">Rajat Goel</a> -->
+			</div>
+		
+	
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/expPh1/default.html b/src/lab/expPh1/default.html
index 9a7ea39f..4f12d365 100644
--- a/src/lab/expPh1/default.html
+++ b/src/lab/expPh1/default.html
@@ -1,26 +1,27 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+should edt the content.html file to suit our requirements. --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
   <!-- The lab Header contains the logo and the name of the lab,
   usually displayed on the top of the page-->
 
-  <header id="experiment-header" >
+  <header id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
       <!-- Write the name of your lab and link it to the home 
       page of your lab (h1 tag is preferred while writing your 
       lab name)-->
@@ -42,7 +43,7 @@
     menu, number of sections, an optional sidebar and a closing 
     footer-->
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
         <!-- You can add a welcome message or title of the 
         experiment here -->
         Simple Pendulum
@@ -52,7 +53,7 @@
 
       <!-- Navigation menu is useful to organize the view of 
       multiple sections inside the article-->
-      <nav id="experiment-article-navigation" >
+      <nav id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
           <!-- The menu can be dynamically generated to contain 
           the headings of your sections or instead write the 
@@ -68,23 +69,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             <p>
             In this module, basic concepts of simple oscillator 
             are explained. Initially, an example of simple 
@@ -107,7 +105,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img src="../images/Pendulum.JPG" alt="pendulum">
+          <img alt="pendulum" src="../images/Pendulum.JPG"/>
         </div>
 
 
@@ -116,24 +114,21 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
 
 
         <!-- Write the section content inside a paragraph 
         element, we can also include images with <img> tag -->
-        <div id="experiment-article-section-2-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-2-content">
           <p>
           There are two solutions to \(ax^2 + bx + c = 0\) and 
           they are $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$
@@ -143,11 +138,10 @@
           </p> 
 
           <p>
-          Where,  &tau;  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   &alpha;  = <span>
+          Where,  τ  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
-          oscillator, l is the length of the <a class="more" 
-          href=""> oscillator </a> and theta is initial 
+          oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
           </p>
           
@@ -155,20 +149,19 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sin&theta; &asymp; &theta;).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
 
           <p>
-          The solution for equation of <a class="more" 
-          href="">simple harmonic oscillator </a> is 				  		
+          The solution for equation of <a class="more" href="">simple harmonic oscillator </a> is 				  		
           </p> 
 
           <p>							
-          where, &theta;(t) is the history of oscillation, 
-          &theta;<sub>0</sub> is the initial angle, 
-          &omega=(g/l)<sup>1/2</sup> is the 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
+          &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
           </p>
@@ -178,19 +171,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
           <p>
             Objective of simple harmonic oscillator experiment 
             is to understand the concept of <span>time period 
@@ -209,21 +199,18 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf" /> 
+            <embed src="PendulumForces.swf"></embed> 
           </p>
         </div>
 
@@ -231,19 +218,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
           <p> 
             Start the experiment with the default values of 
             length, mass and intial displacement (in angle). 
@@ -263,7 +247,7 @@ <h3>Observation 1:</h3>
             <li>
               You may note that this time period value is same 
               for any complete cycle.
-              <a  class="more" href="cITe/Documents/eerc/
+              <a class="more" href="cITe/Documents/eerc/
               pdf/1.manual.pdf">Read More</a>  
             </li> 
 
@@ -283,63 +267,59 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -348,19 +328,16 @@ <h3>Observation 1:</h3>
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows
 	    </p>
@@ -371,19 +348,16 @@ <h3>Observation 1:</h3>
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -411,7 +385,7 @@ <h3>Observation 1:</h3>
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -419,7 +393,7 @@ <h3>Observation 1:</h3>
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -428,11 +402,12 @@ <h3>Observation 1:</h3>
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/expPh1/newcontenttempalte.html b/src/lab/expPh1/newcontenttempalte.html
index 80d19855..9ad92d99 100755
--- a/src/lab/expPh1/newcontenttempalte.html
+++ b/src/lab/expPh1/newcontenttempalte.html
@@ -1,26 +1,25 @@
 <!-- This file needs to be edited by the lab developer to suit
-the requirements of their lab in particular.-->
-
-<!-- Add class="default" to include any element as it is
+the requirements of their lab in particular.--><!-- Add class="default" to include any element as it is
 specified in default.html. 
 Do not include class="default" to the elements that you want to
-edit -->
-
-<!DOCTYPE html>
-<html>
-<head></head>
-<body>
+edit --><!DOCTYPE html>
+<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
+j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
+'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> 
 
-  <header id="experiment-header" class="default">
+  <header class="default" id="experiment-header">
   
-    <div id="experiment-header-logo" class="logo">
+    <div class="logo" id="experiment-header-logo">
      
-      <img src="../images/logo.jpg" />
+      <img src="../images/logo.jpg"/>
     </div>
 
-    <div id="experiment-header-heading" class="heading">
+    <div class="heading" id="experiment-header-heading">
      
       <a href="../index.html">Problem Solving Lab</a>	
     </div>
@@ -34,17 +33,17 @@
   <article id="experiment-article">
   
     
-     <div id="experiment-article-breadcrumb" class="breadcrumb">
+     <div class="breadcrumb" id="experiment-article-breadcrumb">
      </div>
     
-      <header id="experiment-article-heading" class="heading">
+      <header class="heading" id="experiment-article-heading">
        
      HEADING
         
       </header>
 
     
-      <nav id="experiment-article-navigation" class="default">
+      <nav class="default" id="experiment-article-navigation">
         <ul id="experiment-article-navigation-menu">
         
         </ul>
@@ -57,23 +56,20 @@
         <!-- First section of the article-->
         <section id="experiment-article-section-1">
           
-          <div id="experiment-article-section-1-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg" />
+	    <img src="../images/introduction.jpg"/>
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
           div tag. -->
-          <div id="experiment-article-section-1-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-1-heading">
             Introduction
           </div>
 
           <!-- Write the section content inside a paragraph 
           element, You can also include images with <img> tag -->
-          <div id="experiment-article-section-1-content" 
-          class="content">	
+          <div class="content" id="experiment-article-section-1-content">	
             
 
 
@@ -85,20 +81,17 @@
       <!-- Second section of the article-->
       <section id="experiment-article-section-2">
         
-        <div id="experiment-article-section-2-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg" />
+	  <img src="../images/theory.jpg"/>
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
         div tag. -->
-        <div id="experiment-article-section-2-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-2-heading">
           Theory
         </div>
-       <div id="experiment-article-section-2-content" 
-        class="content">
+       <div class="content" id="experiment-article-section-2-content">
 
 
 
@@ -109,19 +102,16 @@
 
       <section id="experiment-article-section-3">
         
-        <div id="experiment-article-section-3-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg" />
+	  <img src="../images/objective.jpg"/>
 	</div>
      
-        <div id="experiment-article-section-3-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-3-heading">
           Objective
         </div>
 
-        <div id="experiment-article-section-3-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-3-content">
 
         <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
@@ -135,19 +125,16 @@
 
       <section id="experiment-article-section-4">
 
-        <div id="experiment-article-section-4-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg" />
+	  <img src="../images/simulation.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-4-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-4-heading">
           Experiment
         </div>
 
-        <div id="experiment-article-section-4-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-4-content">
  <p>
         <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
          </p>
@@ -158,19 +145,16 @@
 
       <section id="experiment-article-section-5">
    
-        <div id="experiment-article-section-5-icon" 
-        class="icon">
+        <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg" />
+	  <img src="../images/manual.jpg"/>
 	</div>
 
-        <div id="experiment-article-section-5-heading" 
-        class="heading">
+        <div class="heading" id="experiment-article-section-5-heading">
           Manual
         </div>
 
-        <div id="experiment-article-section-5-content" 
-        class="content">
+        <div class="content" id="experiment-article-section-5-content">
 
 	<p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
@@ -182,63 +166,59 @@
 
         <section id="experiment-article-section-6">
       
-          <div id="experiment-article-section-6-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg" />
+	    <img src="../images/quizzes.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-6-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-6-heading">
             Quizzes
           </div>
 
-          <div id="experiment-article-section-6-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-6-content">
             
             <p>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br> 
-              <input type="radio" name="q1" id="q1" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q1" id="q1" value="0">
+              is called Time Period of the oscillator. <br/> 
+              <input id="q1" name="q1" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q1" name="q1" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br> 
-              <input type="radio" name="q2" id="q2" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q2" id="q2"value="0">
+              conditions.<br/> 
+              <input id="q2" name="q2" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q2" name="q2" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br> 
-              <input type="radio" name="q3" id="q3" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q3" id="q3"value="0">
+              conditions. <br/> 
+              <input id="q3" name="q3" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q3" name="q3" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br> 
-              <input type="radio" name="q4" id="q4" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q4" id="q4" value="0">
+              Value of time period depends on mass. <br/> 
+              <input id="q4" name="q4" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q4" name="q4" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br> 
-              <input type="radio" name="q5" id="q5" value="1"> 
-                <font color="green"> True </font> <br> 
-              <input type="radio" name="q5" id="q5"value="0">
+              oscillator. <br/> 
+              <input id="q5" name="q5" type="radio" value="1"/> 
+                <font color="green"> True </font> <br/> 
+              <input id="q5" name="q5" type="radio" value="0"/>
                 <font color="red"> False </font> <br/><br/> 
-              <input type="submit" value="Submit Answers" 
-                class="button" />
+              <input class="button" type="submit" value="Submit Answers"/>
             </p>
 
           </div>
@@ -247,24 +227,21 @@
 
         <section id="experiment-article-section-7">
 	  
-          <div id="experiment-article-section-7-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg" />
+	    <img src="../images/procedure.jpg"/>
 	  </div>
 	
-          <div id="experiment-article-section-7-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-7-heading">
 	    Procedure
 	  </div>
 	
-          <div id="experiment-article-section-7-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-7-content">
 	    <p>
 	      Procedure for the experiment is as follows.
 	    </p>
 		<p>
-<ol>
+</p><ol>
 <li> Write the code for the problem or upload a solution. </li>
 <li> Press the 'i' button get info about the problem which you have to solve.</li>
 <li> If you are finding it difficult to solve the solution, then you can use the 4 levels of incresingly descriptive hints, but try to use minimum number of hints.</li>
@@ -274,26 +251,23 @@
 </ol>
 		<p>
 
-	  </div>
+	  </p></div>
 	
         </section>
 			
 		
         <section id="experiment-article-section-8">
    
-          <div id="experiment-article-section-8-icon" 
-          class="icon">
+          <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg" />
+	    <img src="../images/readings.jpg"/>
 	  </div>
 
-          <div id="experiment-article-section-8-heading" 
-          class="heading">
+          <div class="heading" id="experiment-article-section-8-heading">
             Further Readings
           </div>
 
-          <div id="experiment-article-section-8-content" 
-          class="content">
+          <div class="content" id="experiment-article-section-8-content">
             <ul>	
               <li>
                 <a href="http://en.wikipedia.org/wiki/
@@ -321,7 +295,7 @@
     <!-- An article can have a sidebar that contain related 
     links and additional material (however it is kept optional 
     at this moment) -->
-    <aside id="lab-article-sidebar" class="default">
+    <aside class="default" id="lab-article-sidebar">
       <!-- put the content that you want to appear in the 
       sidebar -->	
     </aside>
@@ -329,7 +303,7 @@
 
     <!-- Article footer can display related content and 
     additional links -->						
-    <footer id="lab-article-footer" class="default">
+    <footer class="default" id="lab-article-footer">
       <!-- Put the content that you want to appear here -->
     </footer>
 
@@ -338,11 +312,12 @@
 
   <!-- Links to other labs, about us page can be kept the lab 
   footer-->
-  <footer id="lab-footer" class="default">
+  <footer class="default" id="lab-footer">
     <!-- Put the content here-->
   </footer>
 
 </div>		
 
-</body>
-</html>
+
+
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp_template.php b/src/lab/exp_template.php
index de80cfc5..6af1ba63 100644
--- a/src/lab/exp_template.php
+++ b/src/lab/exp_template.php
@@ -2,6 +2,8 @@
 <html lang="en" class="no-js">
 
 <head>
+<script class='gtm'>(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-W59SWTR');</script>
+
   
   <!--It is a good practice to declare the encoding even for an 
   English Web site. One function of this is to tag is to "reset"
diff --git a/src/lab/faq.html b/src/lab/faq.html
index cec4bfe3..7385bbea 100755
--- a/src/lab/faq.html
+++ b/src/lab/faq.html
@@ -28,7 +28,7 @@
    
 	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
   <div id="top">
     	<header>
 	<!-- Navigation -->
diff --git a/src/lab/index.html b/src/lab/index.html
index a5090a4c..0837bea7 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/themes/green-icon/search-result.html b/src/themes/green-icon/search-result.html
index bed8dbee..9f519064 100755
--- a/src/themes/green-icon/search-result.html
+++ b/src/themes/green-icon/search-result.html
@@ -27,7 +27,7 @@
     <link href="css/style.css" rel="stylesheet"/>
 	<script src="tabs.js" type="text/javascript"></script>
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->

From 5b426144bb28e023fbe841f0d6eddf983d5d97f6 Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Fri, 3 Jul 2020 08:25:07 +0530
Subject: [PATCH 06/22] deleting submissions

---
 .gitignore                                    |   3 +-
 src/lab/Courses Aligned.html                  |   2 +-
 src/lab/Feedback.html                         |   2 +-
 src/lab/Introduction.html                     |   2 +-
 src/lab/List of experiments.html              |   2 +-
 src/lab/Prerequisites.html                    |   2 +-
 src/lab/Target Audience.html                  |   2 +-
 src/lab/default.html                          |   2 +-
 src/lab/exp1/Experiment.html                  |   2 +-
 src/lab/exp1/Feedback.html                    |   2 +-
 src/lab/exp1/Further Readings.html            |   2 +-
 src/lab/exp1/Hints1/Hint_0.html               |   2 +-
 src/lab/exp1/Hints1/Hint_1.html               |   2 +-
 src/lab/exp1/Hints1/Hint_2.html               |   2 +-
 src/lab/exp1/Hints1/Hint_3.html               |   2 +-
 src/lab/exp1/Hints1/Hint_4.html               |   2 +-
 src/lab/exp1/Hints2/Hint_0.html               |   2 +-
 src/lab/exp1/Hints2/Hint_1.html               |   2 +-
 src/lab/exp1/Hints2/Hint_2.html               |   2 +-
 src/lab/exp1/Hints2/Hint_3.html               |   2 +-
 src/lab/exp1/Hints2/Hint_4.html               |   2 +-
 src/lab/exp1/Introduction.html                |   2 +-
 src/lab/exp1/Manual.html                      |   2 +-
 src/lab/exp1/Objective.html                   |   2 +-
 src/lab/exp1/Procedure.html                   |   2 +-
 src/lab/exp1/Quizzes.html                     |   2 +-
 src/lab/exp1/Theory.html                      |   2 +-
 src/lab/exp1/Untitled-1.html                  |   4 +-
 src/lab/exp1/bk_lab.html                      |   2 +-
 src/lab/exp1/bkcontent.html                   |   2 +-
 src/lab/exp1/bkindex.html                     |   2 +-
 src/lab/exp1/default.html                     |   2 +-
 .../exp1/edit_area/plugins/charmap/popup.html |   2 +-
 src/lab/exp1/furtherReadings.html             |   2 +-
 src/lab/exp1/indexmar.html                    |   2 +-
 src/lab/exp1/lab.html                         |   2 +-
 src/lab/exp1/lab_test.html                    |   2 +-
 src/lab/exp1/newindex.html                    |   2 +-
 src/lab/exp1/objective.html                   |   2 +-
 src/lab/exp1/previndex.html                   |   2 +-
 src/lab/exp1/prevlab.html                     |   2 +-
 src/lab/exp1/prob_desc.html                   |   2 +-
 src/lab/exp1/quiz.html                        |   2 +-
 src/lab/exp1/realcontent.html                 |   2 +-
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 src/lab/exp1/submission958166466.html         | 311 --------------
 src/lab/exp1/test.html                        |   2 +-
 src/lab/exp1/theory.html                      |   2 +-
 src/lab/exp10/Experiment.html                 |   2 +-
 src/lab/exp10/Feedback.html                   |   2 +-
 src/lab/exp10/Further Readings.html           |   2 +-
 src/lab/exp10/Hints1/Hint_0.html              |   2 +-
 src/lab/exp10/Hints1/Hint_1.html              |   2 +-
 src/lab/exp10/Hints1/Hint_2.html              |   2 +-
 src/lab/exp10/Hints1/Hint_3.html              |   2 +-
 src/lab/exp10/Hints1/Hint_4.html              |   2 +-
 src/lab/exp10/Hints2/Hint_0.html              |   2 +-
 src/lab/exp10/Hints2/Hint_1.html              |   2 +-
 src/lab/exp10/Hints2/Hint_2.html              |   2 +-
 src/lab/exp10/Hints2/Hint_3.html              |   2 +-
 src/lab/exp10/Hints2/Hint_4.html              |   2 +-
 src/lab/exp10/Introduction.html               |   2 +-
 src/lab/exp10/Manual.html                     |   2 +-
 src/lab/exp10/Objective.html                  |   2 +-
 src/lab/exp10/Procedure.html                  |   2 +-
 src/lab/exp10/Quizzes.html                    |   2 +-
 src/lab/exp10/Theory.html                     |   2 +-
 src/lab/exp10/default.html                    |   2 +-
 .../edit_area/plugins/charmap/popup.html      |   2 +-
 src/lab/exp10/furtherReadings.html            |   2 +-
 src/lab/exp10/lab.html                        |   2 +-
 src/lab/exp10/lab_test.html                   |   2 +-
 src/lab/exp10/objective.html                  |   2 +-
 src/lab/exp10/prob_desc.html                  |   2 +-
 src/lab/exp10/quiz.html                       |   2 +-
 src/lab/exp10/submission014407413.html        | 335 ---------------
 src/lab/exp10/submission041099922.html        | 340 ---------------
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diff --git a/.gitignore b/.gitignore
index 385cdce2..794b1672 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,4 +3,5 @@ template1.html
 scrap.py
 scraplab.py
 *~
-content.html
\ No newline at end of file
+content.html
+submission*.html
\ No newline at end of file
diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 789a0d75..8603b967 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -29,7 +29,7 @@
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diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 1aba324e..7fa13342 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -29,7 +29,7 @@
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index 4eac8676..4ca09fce 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
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diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 5adddf61..6203b8d1 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
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index cda4d8b2..01b25c9e 100644
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diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index 4734be8f..579e783b 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
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index b60defe7..7e856119 100644
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+++ b/src/lab/default.html
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index 5b3668b4..8b175001 100644
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diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index 47f46af5..71155745 100644
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index 37d49970..ec18ab6c 100644
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index 2cb9673a..779c0338 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 907ba7f9..4442d589 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index 1ee5e654..5acafb7f 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 759df99b..2597bf6d 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index 17ac37bb..3d0e7679 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index 245b711f..83b21dc9 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index 90838de7..e12cb5d7 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 int N;
 	scanf("%d",&amp;N);
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index c3392253..956e0632 100644
--- a/src/lab/exp1/Introduction.html
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diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index fd43e291..2f92e660 100644
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diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 44c23873..5cf63573 100644
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diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index 6d590509..082931ea 100644
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+++ b/src/lab/exp1/Procedure.html
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diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quizzes.html
index b671d635..2a8b53a1 100644
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@@ -60,7 +60,7 @@
 
 
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diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
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diff --git a/src/lab/exp1/Untitled-1.html b/src/lab/exp1/Untitled-1.html
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diff --git a/src/lab/exp1/bk_lab.html b/src/lab/exp1/bk_lab.html
index 6ecbbcd7..f431dfde 100755
--- a/src/lab/exp1/bk_lab.html
+++ b/src/lab/exp1/bk_lab.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/bkcontent.html b/src/lab/exp1/bkcontent.html
index 31cb6757..2cea91dc 100755
--- a/src/lab/exp1/bkcontent.html
+++ b/src/lab/exp1/bkcontent.html
@@ -4,7 +4,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
diff --git a/src/lab/exp1/bkindex.html b/src/lab/exp1/bkindex.html
index 818b4b5a..f34e6eff 100755
--- a/src/lab/exp1/bkindex.html
+++ b/src/lab/exp1/bkindex.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/default.html b/src/lab/exp1/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp1/default.html
+++ b/src/lab/exp1/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp1/edit_area/plugins/charmap/popup.html b/src/lab/exp1/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp1/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp1/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp1/furtherReadings.html b/src/lab/exp1/furtherReadings.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp1/furtherReadings.html
+++ b/src/lab/exp1/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/indexmar.html b/src/lab/exp1/indexmar.html
index cb3c001b..7837890a 100755
--- a/src/lab/exp1/indexmar.html
+++ b/src/lab/exp1/indexmar.html
@@ -45,7 +45,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
         <header id="site_head">
                 <div class="header_cont"> <!-- 960px header-->
                         <!-- LOGO of the company-->
diff --git a/src/lab/exp1/lab.html b/src/lab/exp1/lab.html
index 776a61a2..4ea0d877 100755
--- a/src/lab/exp1/lab.html
+++ b/src/lab/exp1/lab.html
@@ -203,7 +203,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/lab_test.html b/src/lab/exp1/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp1/lab_test.html
+++ b/src/lab/exp1/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp1/newindex.html b/src/lab/exp1/newindex.html
index fd67117a..25c5b0ea 100755
--- a/src/lab/exp1/newindex.html
+++ b/src/lab/exp1/newindex.html
@@ -43,7 +43,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 	<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/objective.html b/src/lab/exp1/objective.html
index f7ba2977..fae6be70 100755
--- a/src/lab/exp1/objective.html
+++ b/src/lab/exp1/objective.html
@@ -9,7 +9,7 @@
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/previndex.html b/src/lab/exp1/previndex.html
index f70200d3..3d4874ab 100755
--- a/src/lab/exp1/previndex.html
+++ b/src/lab/exp1/previndex.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/prevlab.html b/src/lab/exp1/prevlab.html
index 237bac34..8ae20c02 100755
--- a/src/lab/exp1/prevlab.html
+++ b/src/lab/exp1/prevlab.html
@@ -190,7 +190,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/prob_desc.html b/src/lab/exp1/prob_desc.html
index e5a7ac28..da8c6177 100755
--- a/src/lab/exp1/prob_desc.html
+++ b/src/lab/exp1/prob_desc.html
@@ -14,7 +14,7 @@
 	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 	<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 	<div id="content">
 	<ol>
 	<li> 
diff --git a/src/lab/exp1/quiz.html b/src/lab/exp1/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp1/quiz.html
+++ b/src/lab/exp1/quiz.html
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-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/realcontent.html b/src/lab/exp1/realcontent.html
index bbbe7b23..99776baf 100755
--- a/src/lab/exp1/realcontent.html
+++ b/src/lab/exp1/realcontent.html
@@ -4,7 +4,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Numerical Representation
 </h1>
 
diff --git a/src/lab/exp1/submission040361394.html b/src/lab/exp1/submission040361394.html
deleted file mode 100644
index 23444923..00000000
--- a/src/lab/exp1/submission040361394.html
+++ /dev/null
@@ -1,315 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp; -->
-<!-- <input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>)</span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082188330.html b/src/lab/exp1/submission082188330.html
deleted file mode 100644
index 4a1380ba..00000000
--- a/src/lab/exp1/submission082188330.html
+++ /dev/null
@@ -1,326 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Passed </td></tr><tr><td>65
-</td><td>7
-</td><td>7
-</td><td> Passed </td></tr><tr><td>13
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>100000
-</td><td>17
-</td><td>17
-</td><td> Passed </td></tr><tr><td>1000000
-</td><td>20
-</td><td>20
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission082365658.html b/src/lab/exp1/submission082365658.html
deleted file mode 100644
index 4488a9e0..00000000
--- a/src/lab/exp1/submission082365658.html
+++ /dev/null
@@ -1,315 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission100779049.html b/src/lab/exp1/submission100779049.html
deleted file mode 100644
index 2bd08e7c..00000000
--- a/src/lab/exp1/submission100779049.html
+++ /dev/null
@@ -1,315 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission111383690.html b/src/lab/exp1/submission111383690.html
deleted file mode 100644
index 67dd3798..00000000
--- a/src/lab/exp1/submission111383690.html
+++ /dev/null
@@ -1,311 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>-->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe> 
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission155196644.html b/src/lab/exp1/submission155196644.html
deleted file mode 100644
index d3cd2d35..00000000
--- a/src/lab/exp1/submission155196644.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission192297025.html b/src/lab/exp1/submission192297025.html
deleted file mode 100644
index fe66e338..00000000
--- a/src/lab/exp1/submission192297025.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission246138070.html b/src/lab/exp1/submission246138070.html
deleted file mode 100644
index 9459a07b..00000000
--- a/src/lab/exp1/submission246138070.html
+++ /dev/null
@@ -1,311 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission261786162.html b/src/lab/exp1/submission261786162.html
deleted file mode 100644
index 33bc1cdc..00000000
--- a/src/lab/exp1/submission261786162.html
+++ /dev/null
@@ -1,319 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission293575265.html b/src/lab/exp1/submission293575265.html
deleted file mode 100644
index cca260b2..00000000
--- a/src/lab/exp1/submission293575265.html
+++ /dev/null
@@ -1,310 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission341502595.html b/src/lab/exp1/submission341502595.html
deleted file mode 100644
index 9457bbae..00000000
--- a/src/lab/exp1/submission341502595.html
+++ /dev/null
@@ -1,301 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission374353207.html b/src/lab/exp1/submission374353207.html
deleted file mode 100644
index 22404e93..00000000
--- a/src/lab/exp1/submission374353207.html
+++ /dev/null
@@ -1,339 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 A B C AC
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 A B C D E CE
-</td><td>28
-</td><td>28
-</td><td> Passed </td></tr><tr><td>4 X D R H  DRH 
-</td><td>11
-</td><td>11
-</td><td> Passed </td></tr><tr><td>4 X D R H  R 
-</td><td>13
-</td><td>13
-</td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
-</td><td>32766
-</td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission394922362.html b/src/lab/exp1/submission394922362.html
deleted file mode 100644
index d3cd2d35..00000000
--- a/src/lab/exp1/submission394922362.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission398367358.html b/src/lab/exp1/submission398367358.html
deleted file mode 100644
index fe66e338..00000000
--- a/src/lab/exp1/submission398367358.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission447675640.html b/src/lab/exp1/submission447675640.html
deleted file mode 100644
index f469bb9d..00000000
--- a/src/lab/exp1/submission447675640.html
+++ /dev/null
@@ -1,310 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>20
-</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission451578265.html b/src/lab/exp1/submission451578265.html
deleted file mode 100644
index 22404e93..00000000
--- a/src/lab/exp1/submission451578265.html
+++ /dev/null
@@ -1,339 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 A B C AC
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 A B C D E CE
-</td><td>28
-</td><td>28
-</td><td> Passed </td></tr><tr><td>4 X D R H  DRH 
-</td><td>11
-</td><td>11
-</td><td> Passed </td></tr><tr><td>4 X D R H  R 
-</td><td>13
-</td><td>13
-</td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
-</td><td>32766
-</td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission465083441.html b/src/lab/exp1/submission465083441.html
deleted file mode 100644
index cca260b2..00000000
--- a/src/lab/exp1/submission465083441.html
+++ /dev/null
@@ -1,310 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission535736206.html b/src/lab/exp1/submission535736206.html
deleted file mode 100644
index da7614a5..00000000
--- a/src/lab/exp1/submission535736206.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-		#include&lt;stdio.h&gt;
-main(){
-int N;
-	scanf("%d",&amp;N);
-	char input_chars[N];
-	int i;
-	for(i=0;i&lt;N ;i++)
-	{
-		scanf(" %c",&amp;input_chars[i]);
-	}
-	char input[100];
-	scanf("%s",input);
-	int position=0,j=0; 
-	int addValue[N];
-	for(i=0,j=N-1;i&lt;N ;i++,j--)
-	   addValue[i] = (1&lt;&lt;j);
-	
-	
-	for(i=0,j=0;input[i];i++){
-       		while(input_chars[j]!=input[i]){ 
-			position+=addValue[j];
-			j++;
-		}
-		j++;
-		position++;	
-	}
-	printf("%d\n",position);
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 A B C AC
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 A B C D E CE
-</td><td>28
-</td><td>28
-</td><td> Passed </td></tr><tr><td>4 X D R H  DRH 
-</td><td>11
-</td><td>11
-</td><td> Passed </td></tr><tr><td>4 X D R H  R 
-</td><td>13
-</td><td>13
-</td><td> Passed </td></tr><tr><td>15 A X S R O V G N M D U I Q J Z JZ
-</td><td>32766
-</td><td>32766
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission612317503.html b/src/lab/exp1/submission612317503.html
deleted file mode 100644
index 4488a9e0..00000000
--- a/src/lab/exp1/submission612317503.html
+++ /dev/null
@@ -1,315 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission851076195.html b/src/lab/exp1/submission851076195.html
deleted file mode 100644
index 9457bbae..00000000
--- a/src/lab/exp1/submission851076195.html
+++ /dev/null
@@ -1,301 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission932738197.html b/src/lab/exp1/submission932738197.html
deleted file mode 100644
index d3cd2d35..00000000
--- a/src/lab/exp1/submission932738197.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/submission958166466.html b/src/lab/exp1/submission958166466.html
deleted file mode 100644
index 9459a07b..00000000
--- a/src/lab/exp1/submission958166466.html
+++ /dev/null
@@ -1,311 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Numerical Representation </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		 
-#include&lt;stdio.h&gt;
-int main(){
-
-int N,count=0;
-scanf("%d",&amp;N);
-while(N){
-	N&gt;&gt;=1;
-	count++;
-}
-printf("%d\n",count);
-
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>7
-</td><td>7
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/test.html b/src/lab/exp1/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp1/test.html
+++ b/src/lab/exp1/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp1/theory.html b/src/lab/exp1/theory.html
index b31bca4c..eac319a1 100755
--- a/src/lab/exp1/theory.html
+++ b/src/lab/exp1/theory.html
@@ -15,7 +15,7 @@
 
 <!--		<script src="jqminmax.js" type="text/javascript"></script> -->
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index 77de9acd..ff6aa4ed 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index fbd2e4a3..d709afea 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index e8e77ae7..880e1d41 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index c5a3e8f7..2a0ea0f7 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index 017252e7..f0504759 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index 094f185b..ee3b150d 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 39e80f74..9ff54b88 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index d060982c..e37d1bd9 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index b481eead..cb980279 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index d51e61eb..133bcdc0 100755
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@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index cba28ba3..e7ffdf78 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
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diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
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diff --git a/src/lab/exp10/default.html b/src/lab/exp10/default.html
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 <div id="experiment"> <!-- The Experiment Document Container-->
 
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--- a/src/lab/exp10/lab.html
+++ b/src/lab/exp10/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/lab_test.html b/src/lab/exp10/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp10/lab_test.html
+++ b/src/lab/exp10/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp10/objective.html b/src/lab/exp10/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp10/objective.html
+++ b/src/lab/exp10/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/prob_desc.html b/src/lab/exp10/prob_desc.html
index a590535e..dce75c3d 100755
--- a/src/lab/exp10/prob_desc.html
+++ b/src/lab/exp10/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
diff --git a/src/lab/exp10/quiz.html b/src/lab/exp10/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp10/quiz.html
+++ b/src/lab/exp10/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/submission014407413.html b/src/lab/exp10/submission014407413.html
deleted file mode 100644
index 7f91fcd9..00000000
--- a/src/lab/exp10/submission014407413.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission041099922.html b/src/lab/exp10/submission041099922.html
deleted file mode 100644
index 8110bdc8..00000000
--- a/src/lab/exp10/submission041099922.html
+++ /dev/null
@@ -1,340 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c:1:10: error: expected '=', ',', ';', 'asm' or '__attribute__' before '&lt;' token<br/>&gt;
-<br/> ^<br/>c:2:0:<br/>h:139:1: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>c:2:0:<br/>h:331:4: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:361:4: error: unknown type name 'size_t'<br/>n,<br/> ^<br/>h:466:22: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>h:468:22: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:468:38: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:480:36: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:492:0,<br/>c:2:<br/>h:32:22: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>c:2:0:<br/>h:498:22: error: unknown type name 'size_t'<br/>r;<br/> ^<br/>h:503:45: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:503:65: error: unknown type name 'size_t'<br/>e)<br/> ^<br/>h:756:9: error: unknown type name 'size_t'<br/>r)<br/> ^<br/>h:756:25: error: unknown type name 'size_t'<br/>r)<br/> ^<br/>h:765:34: error: unknown type name 'size_t'<br/>e,<br/> ^<br/>h:765:50: error: unknown type name 'size_t'<br/>e,<br/> ^<br/>h:844:6: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:847:6: error: unknown type name 'size_t'<br/>);<br/> ^<br/>h:851:31: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>h:855:31: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>h:863:36: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:867:34: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:874:1: error: unknown type name 'size_t'<br/>s,<br/> ^<br/>h:875:32: error: unknown type name 'size_t'<br/>W;<br/> ^<br/>h:877:1: error: unknown type name 'size_t'<br/>s,<br/> ^<br/>h:878:38: error: unknown type name 'size_t'<br/>n)<br/> ^<br/>c: In function 'main':<br/>c:7:5: warning: incompatible implicit declaration of built-in function 'fscanf' [enabled by default]<br/>,
-<br/> ^<br/>c:7:12: error: 'stdin' undeclared (first use in this function)<br/>,
-<br/> ^<br/>c:7:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:7:30: error: 'EOF' undeclared (first use in this function)<br/>,
-<br/> ^<br/>c:21:2: warning: incompatible implicit declaration of built-in function 'printf' [enabled by default]<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission069210435.html b/src/lab/exp10/submission069210435.html
deleted file mode 100644
index 08e6c056..00000000
--- a/src/lab/exp10/submission069210435.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission081503699.html b/src/lab/exp10/submission081503699.html
deleted file mode 100644
index b6739187..00000000
--- a/src/lab/exp10/submission081503699.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission097709078.html b/src/lab/exp10/submission097709078.html
deleted file mode 100644
index 9deed7b2..00000000
--- a/src/lab/exp10/submission097709078.html
+++ /dev/null
@@ -1,318 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission132342816.html b/src/lab/exp10/submission132342816.html
deleted file mode 100644
index 033d8771..00000000
--- a/src/lab/exp10/submission132342816.html
+++ /dev/null
@@ -1,337 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission136616632.html b/src/lab/exp10/submission136616632.html
deleted file mode 100644
index 1815fa74..00000000
--- a/src/lab/exp10/submission136616632.html
+++ /dev/null
@@ -1,342 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission139577371.html b/src/lab/exp10/submission139577371.html
deleted file mode 100644
index 2ee555b5..00000000
--- a/src/lab/exp10/submission139577371.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
- --><iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission150766206.html b/src/lab/exp10/submission150766206.html
deleted file mode 100644
index 8fae5df0..00000000
--- a/src/lab/exp10/submission150766206.html
+++ /dev/null
@@ -1,344 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-	
-	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	long long int N;
-	scanf("%lld",&amp;N);
-	long long int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%lld",arr+i);
-	long long int ans = 0;
-	long long int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%lld\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>0
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-97 94 95 21 12 21 35 85 29 82 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-40 75 4 83 38 26 12 20 41 80 
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>10
-19 6 69 8 19 39 65 64 94 25 
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>10
-98 80 92 41 13 41 68 77 18 19 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-78 74 41 73 3 6 80 86 77 83 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission154563970.html b/src/lab/exp10/submission154563970.html
deleted file mode 100644
index 29b0eac2..00000000
--- a/src/lab/exp10/submission154563970.html
+++ /dev/null
@@ -1,320 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int lengt;h=1;
-	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_lengt;h=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			lengt;h++;
-		else
-			lengt;h = 1;
-		if(max_lengt;h&lt;lengt;h)
-			max_lengt;h = lengt;h;
-		num = curr_num;
-	}
-	printf("%d\n",max_lengt;h);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:6:12: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:6:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:7:20: error: 'i' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:7:22: error: 'curr_num' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:16:3: error: 'else' without a previous 'if'<br/>e
-<br/> ^<br/>c:18:15: error: expected ')' before ';' token<br/>)
-<br/> ^<br/>c:22:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission197741129.html b/src/lab/exp10/submission197741129.html
deleted file mode 100644
index 6cbddf05..00000000
--- a/src/lab/exp10/submission197741129.html
+++ /dev/null
@@ -1,345 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission225823924.html b/src/lab/exp10/submission225823924.html
deleted file mode 100644
index 0a3cb7bd..00000000
--- a/src/lab/exp10/submission225823924.html
+++ /dev/null
@@ -1,321 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	long long int N;
-	scanf("%lld",&amp;N);
-	long long int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%lld",arr+i);
-	long long int ans = 0;
-	long long int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%lld\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td></td><td>0
-</td><td>1
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission248914412.html b/src/lab/exp10/submission248914412.html
deleted file mode 100644
index 08e6c056..00000000
--- a/src/lab/exp10/submission248914412.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission294791598.html b/src/lab/exp10/submission294791598.html
deleted file mode 100644
index 8e9b2423..00000000
--- a/src/lab/exp10/submission294791598.html
+++ /dev/null
@@ -1,316 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}
-	
-	
-	
-	
-	
-	
-	
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission298808864.html b/src/lab/exp10/submission298808864.html
deleted file mode 100644
index 014c8c25..00000000
--- a/src/lab/exp10/submission298808864.html
+++ /dev/null
@@ -1,310 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission320709922.html b/src/lab/exp10/submission320709922.html
deleted file mode 100644
index 8b0d77fa..00000000
--- a/src/lab/exp10/submission320709922.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission325134226.html b/src/lab/exp10/submission325134226.html
deleted file mode 100644
index f3324743..00000000
--- a/src/lab/exp10/submission325134226.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission327800652.html b/src/lab/exp10/submission327800652.html
deleted file mode 100644
index f3324743..00000000
--- a/src/lab/exp10/submission327800652.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission341467322.html b/src/lab/exp10/submission341467322.html
deleted file mode 100644
index b6739187..00000000
--- a/src/lab/exp10/submission341467322.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission385914953.html b/src/lab/exp10/submission385914953.html
deleted file mode 100644
index 033d8771..00000000
--- a/src/lab/exp10/submission385914953.html
+++ /dev/null
@@ -1,337 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission389808530.html b/src/lab/exp10/submission389808530.html
deleted file mode 100644
index 55be84dc..00000000
--- a/src/lab/exp10/submission389808530.html
+++ /dev/null
@@ -1,312 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	long long int N;
-	scanf("%lld",&amp;N);
-	long long int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%lld",arr+i);
-	long long int ans = 0;
-	long long int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%lld\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission389904397.html b/src/lab/exp10/submission389904397.html
deleted file mode 100644
index 7f91fcd9..00000000
--- a/src/lab/exp10/submission389904397.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission451338786.html b/src/lab/exp10/submission451338786.html
deleted file mode 100644
index d3f59845..00000000
--- a/src/lab/exp10/submission451338786.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-	
-	
-	
-#include&lt;stdio.h&gt;
-int main(){
-	long long int N;
-	scanf("%lld",&amp;N);
-	long long int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%lld",arr+i);
-	long long int ans = 0;
-	long long int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%lld\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission486326983.html b/src/lab/exp10/submission486326983.html
deleted file mode 100644
index 7095f564..00000000
--- a/src/lab/exp10/submission486326983.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>0
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-97 94 95 21 12 21 35 85 29 82 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-40 75 4 83 38 26 12 20 41 80 
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>10
-19 6 69 8 19 39 65 64 94 25 
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>10
-98 80 92 41 13 41 68 77 18 19 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-78 74 41 73 3 6 80 86 77 83 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission487105672.html b/src/lab/exp10/submission487105672.html
deleted file mode 100644
index 75c7a965..00000000
--- a/src/lab/exp10/submission487105672.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int lengt;h=1;
-	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_lengt;h=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			lengt;h++;
-		else
-			lengt;h = 1;
-		if(max_lengt;h&lt;lengt;h)
-			max_lengt;h = lengt;h;
-		num = curr_num;
-	}
-	printf("%d\n",max_lengt;h);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:5:12: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:5:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:6:20: error: 'i' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:6:22: error: 'curr_num' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:15:3: error: 'else' without a previous 'if'<br/>e
-<br/> ^<br/>c:17:15: error: expected ')' before ';' token<br/>)
-<br/> ^<br/>c:21:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int lengt;h=1;
-	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_lengt;h=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			lengt;h++;
-		else
-			lengt;h = 1;
-		if(max_lengt;h&lt;lengt;h)
-			max_lengt;h = lengt;h;
-		num = curr_num;
-	}
-	printf("%d\n",max_lengt;h);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission498781684.html b/src/lab/exp10/submission498781684.html
deleted file mode 100644
index 6740ccb6..00000000
--- a/src/lab/exp10/submission498781684.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission528504976.html b/src/lab/exp10/submission528504976.html
deleted file mode 100644
index 08e6c056..00000000
--- a/src/lab/exp10/submission528504976.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission536961559.html b/src/lab/exp10/submission536961559.html
deleted file mode 100644
index 6740ccb6..00000000
--- a/src/lab/exp10/submission536961559.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum length must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission616671535.html b/src/lab/exp10/submission616671535.html
deleted file mode 100644
index f3324743..00000000
--- a/src/lab/exp10/submission616671535.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission623705546.html b/src/lab/exp10/submission623705546.html
deleted file mode 100644
index 5d29b648..00000000
--- a/src/lab/exp10/submission623705546.html
+++ /dev/null
@@ -1,347 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_length=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_length&lt;best[i])
-		  longest_length = best[i];
-	
-}
-printf("%d\n",longest_length);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>0
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-97 94 95 21 12 21 35 85 29 82 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-40 75 4 83 38 26 12 20 41 80 
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>10
-19 6 69 8 19 39 65 64 94 25 
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>10
-98 80 92 41 13 41 68 77 18 19 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-78 74 41 73 3 6 80 86 77 83 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission627193306.html b/src/lab/exp10/submission627193306.html
deleted file mode 100644
index b1a38434..00000000
--- a/src/lab/exp10/submission627193306.html
+++ /dev/null
@@ -1,308 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission635825416.html b/src/lab/exp10/submission635825416.html
deleted file mode 100644
index 84c0f315..00000000
--- a/src/lab/exp10/submission635825416.html
+++ /dev/null
@@ -1,308 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission690124106.html b/src/lab/exp10/submission690124106.html
deleted file mode 100644
index 7f91fcd9..00000000
--- a/src/lab/exp10/submission690124106.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission741930076.html b/src/lab/exp10/submission741930076.html
deleted file mode 100644
index 1815fa74..00000000
--- a/src/lab/exp10/submission741930076.html
+++ /dev/null
@@ -1,342 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission764801824.html b/src/lab/exp10/submission764801824.html
deleted file mode 100644
index 08e6c056..00000000
--- a/src/lab/exp10/submission764801824.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10 5 4 15 3 2 1 0
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>40 75 4 83 38 26 12 20 41 80 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>19 6 69 8 19 39 65 64 94 25 
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>98 80 92 41 13 41 68 77 18 19 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>78 74 41 73 3 6 80 86 77 83 
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>1 2 9 4 7 3 11 8 14 6
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>1 3 2 10 4 5
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td></td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission786099001.html b/src/lab/exp10/submission786099001.html
deleted file mode 100644
index 4cf0ee25..00000000
--- a/src/lab/exp10/submission786099001.html
+++ /dev/null
@@ -1,316 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission810103484.html b/src/lab/exp10/submission810103484.html
deleted file mode 100644
index 1803a7c1..00000000
--- a/src/lab/exp10/submission810103484.html
+++ /dev/null
@@ -1,321 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int lengt;h=1;
-	int max_lengt;h=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_lengt;h=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			lengt;h++;
-		else
-			lengt;h = 1;
-		if(max_lengt;h&lt;lengt;h)
-			max_lengt;h = lengt;h;
-		num = curr_num;
-	}
-	printf("%d\n",max_lengt;h);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:7:12: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:7:12: note: each undeclared identifier is reported only once for each function it appears in<br/>c:8:20: error: 'i' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:8:22: error: 'curr_num' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:17:3: error: 'else' without a previous 'if'<br/>e
-<br/> ^<br/>c:19:15: error: expected ')' before ';' token<br/>)
-<br/> ^<br/>c:23:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission876847729.html b/src/lab/exp10/submission876847729.html
deleted file mode 100644
index 7f91fcd9..00000000
--- a/src/lab/exp10/submission876847729.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int main(){
-int num;
-	int length=1;
-	int max_length=0,i,curr_num;
-	if(fscanf(stdin,"%d",&amp;num)!=EOF) /* If there is no number in the input file maximum lengt;h must be 0,
-                                 otherwise it is atleast 1*/
-		max_length=1;
-		
-	while(fscanf(stdin,"%d",&amp;curr_num)!=EOF){
-    // Scan and compute longest subsequence till EOF
-		if(curr_num&lt;num)
-			length++;
-		else
-			length = 1;
-		if(max_length&lt;length)
-			max_length = length;
-		num = curr_num;
-	}
-	printf("%d\n",max_length);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission924187431.html b/src/lab/exp10/submission924187431.html
deleted file mode 100644
index effc7c4f..00000000
--- a/src/lab/exp10/submission924187431.html
+++ /dev/null
@@ -1,316 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td></td><td>0
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission925894823.html b/src/lab/exp10/submission925894823.html
deleted file mode 100644
index 5da111a3..00000000
--- a/src/lab/exp10/submission925894823.html
+++ /dev/null
@@ -1,351 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_lengt;h=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_lengt;h&lt;best[i])
-		  longest_lengt;h = best[i];
-	
-}
-printf("%d\n",longest_lengt;h);
-return 0;	
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:12:19: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:12:19: note: each undeclared identifier is reported only once for each function it appears in<br/>c:12:23: error: 'i' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:12:25: error: 'j' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:22:18: error: expected ')' before ';' token<br/>)
-<br/> ^<br/>c:26:28: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-main(){
-int N;
-scanf("%d",&amp;N);
-int *arr=0,*best=0;
-if(N){
-    arr=(int *)malloc(sizeof(int)*N);
-    best=(int *)malloc(sizeof(int)*N);
-}
-
-int longest_lengt;h=0,i,j;
-for(i=0;i&lt; N;i++)
-   scanf("%d",arr+i);
-for(i=0;i&lt; N;i++){
-	best[i] = 1;
-	for(j=0;j&lt; i;j++){
-		if(arr[i]&gt; arr[j])
-			best[i] = (best[i]&gt;(best[j]+1))?best[i]:(best[j]+1);
-
-	}
-	if(longest_lengt;h&lt;best[i])
-		  longest_lengt;h = best[i];
-	
-}
-printf("%d\n",longest_lengt;h);
-return 0;	
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/submission936950104.html b/src/lab/exp10/submission936950104.html
deleted file mode 100644
index 8c29461b..00000000
--- a/src/lab/exp10/submission936950104.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	#include&lt;stdio.h&gt;
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N],i,j;
-	for(i=0;i&lt;N;i++)
-		scanf("%d",arr+i);
-	int ans = 0;
-	int best[N];
-	for(i=0;i&lt;N;i++){
-		best[i] = 1;
-		for(j=0;j&lt;i;j++)
-			if(arr[j]&lt;arr[i])
-				best[i] = (best[i]&gt;(best[j]+1))?best[i]:best[j]+1;
-		if(ans&lt;best[i])
-			ans = best[i];
-	}
-	printf("%d\n",ans);
-	return 0;
-}
-	
-	
-	
-	
-	
-	
-	
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>0
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-97 94 95 21 12 21 35 85 29 82 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-40 75 4 83 38 26 12 20 41 80 
-</td><td>5
-</td><td>5
-</td><td> Passed </td></tr><tr><td>10
-19 6 69 8 19 39 65 64 94 25 
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>10
-98 80 92 41 13 41 68 77 18 19 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10
-78 74 41 73 3 6 80 86 77 83 
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/test.html b/src/lab/exp10/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp10/test.html
+++ b/src/lab/exp10/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp10/theory.html b/src/lab/exp10/theory.html
index 07ba6d91..2f48809f 100755
--- a/src/lab/exp10/theory.html
+++ b/src/lab/exp10/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index 434fd29f..21e39e08 100644
--- a/src/lab/exp2/Experiment.html
+++ b/src/lab/exp2/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index 1acec3ed..8874a5db 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index 1ed6be36..f85d4cf4 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 77f4146b..4010a9a8 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -2,6 +2,6 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index e9a995be..5f9935e7 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index 52fe9518..f20146a9 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index 1b96a68e..1a17d098 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
 -&gt;long long N,sum=0;
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index b690c5ec..82d419fd 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index df5bf4c4..1f1110b6 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -2,7 +2,7 @@
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index d4d2fc26..62630617 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;until a,b are not both 1
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 617f0924..09f75e4b 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
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@@ -2,7 +2,7 @@
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index d7ea474e..45ae942f 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 7ae2b6cc..a2f140f2 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
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@@ -2,7 +2,7 @@
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index 7ae2b6cc..a2f140f2 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index bbee0b90..4953c71b 100644
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diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index b0dfaeee..0953e107 100644
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diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index 2170764d..88eeb8b0 100644
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diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 8054cb75..da118f60 100644
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diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
index ad2b2252..f58f0a53 100644
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diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index 32e09134..fe072af3 100644
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index 87930a45..b47e171c 100755
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 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/default.html b/src/lab/exp2/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp2/default.html
+++ b/src/lab/exp2/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp2/edit_area/plugins/charmap/popup.html b/src/lab/exp2/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp2/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp2/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp2/furtherReadings.html b/src/lab/exp2/furtherReadings.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp2/furtherReadings.html
+++ b/src/lab/exp2/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/lab.html b/src/lab/exp2/lab.html
index 52872e39..3077f66e 100755
--- a/src/lab/exp2/lab.html
+++ b/src/lab/exp2/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/lab_test.html b/src/lab/exp2/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp2/lab_test.html
+++ b/src/lab/exp2/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp2/objective.html b/src/lab/exp2/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp2/objective.html
+++ b/src/lab/exp2/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/previndex.html b/src/lab/exp2/previndex.html
index e3d7934c..bd854ffb 100755
--- a/src/lab/exp2/previndex.html
+++ b/src/lab/exp2/previndex.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/prob_desc.html b/src/lab/exp2/prob_desc.html
index d8bf8f45..58df1984 100755
--- a/src/lab/exp2/prob_desc.html
+++ b/src/lab/exp2/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
diff --git a/src/lab/exp2/quiz.html b/src/lab/exp2/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp2/quiz.html
+++ b/src/lab/exp2/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/submission185550271.html b/src/lab/exp2/submission185550271.html
deleted file mode 100644
index df02f05f..00000000
--- a/src/lab/exp2/submission185550271.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:27:2: error: expected declaration or statement at end of input<br/>0;<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission197174454.html b/src/lab/exp2/submission197174454.html
deleted file mode 100644
index 26658985..00000000
--- a/src/lab/exp2/submission197174454.html
+++ /dev/null
@@ -1,316 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission211548030.html b/src/lab/exp2/submission211548030.html
deleted file mode 100644
index 26676f9d..00000000
--- a/src/lab/exp2/submission211548030.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-main(){
-	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
-	/* the positive Rational number
-	   as represented as a/b*/
-
-	while(1){
-		int x = a/b;
-		int y = a-b*x;
-
-		
-		if(!y){                      
-            printf("%d\n",x-1);
-			break;
-		}
-		printf("%d ",x);
-		a = b;
-		b = y;
-
-
-	}
-	return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission457897134.html b/src/lab/exp2/submission457897134.html
deleted file mode 100644
index ba1f17e7..00000000
--- a/src/lab/exp2/submission457897134.html
+++ /dev/null
@@ -1,323 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Segmentation Fault </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-main(){
-	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
-	/* the positive Rational number
-	   as represented as a/b*/
-
-	while(1){
-		int x = a/b;
-		int y = a-b*x;
-
-		
-		if(!y){                      
-            printf("%d\n",x-1);
-			break;
-		}
-		printf("%d ",x);
-		a = b;
-		b = y;
-
-
-	}
-	return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>6 
-</td><td>YES
-</td><td></td><td> Failed </td><td> Segmentation Fault </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission502952122.html b/src/lab/exp2/submission502952122.html
deleted file mode 100644
index 3f00e20b..00000000
--- a/src/lab/exp2/submission502952122.html
+++ /dev/null
@@ -1,328 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-	}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>6 
-</td><td>YES
-</td><td>YES
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission528085955.html b/src/lab/exp2/submission528085955.html
deleted file mode 100644
index b5aeed1b..00000000
--- a/src/lab/exp2/submission528085955.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;		
-	}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>6 
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>28
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>496
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8128
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>33550336
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8589869056
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>32
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>10201
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission604289628.html b/src/lab/exp2/submission604289628.html
deleted file mode 100644
index f5996149..00000000
--- a/src/lab/exp2/submission604289628.html
+++ /dev/null
@@ -1,317 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission682851925.html b/src/lab/exp2/submission682851925.html
deleted file mode 100644
index 5f0f4b07..00000000
--- a/src/lab/exp2/submission682851925.html
+++ /dev/null
@@ -1,318 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-	}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission785097604.html b/src/lab/exp2/submission785097604.html
deleted file mode 100644
index 4438f0c3..00000000
--- a/src/lab/exp2/submission785097604.html
+++ /dev/null
@@ -1,332 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-main(){
-	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
-	/* the positive Rational number
-	   as represented as a/b*/
-
-	while(1){
-		int x = a/b;
-		int y = a-b*x;
-
-		
-		if(!y){                      
-            printf("%d\n",x-1);
-			break;
-		}
-		printf("%d ",x);
-		a = b;
-		b = y;
-
-
-	}
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>239 51
-</td><td>4 1 2 5 2
-</td><td>4 1 2 5 2
-</td><td> Passed </td></tr><tr><td>27 10
-</td><td>2 1 2 2
-</td><td>2 1 2 2
-</td><td> Passed </td></tr><tr><td>10 1
-</td><td>9
-</td><td>9
-</td><td> Passed </td></tr><tr><td>6 10
-</td><td>0 1 1 1
-</td><td>0 1 1 1
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission900840518.html b/src/lab/exp2/submission900840518.html
deleted file mode 100644
index c063f89c..00000000
--- a/src/lab/exp2/submission900840518.html
+++ /dev/null
@@ -1,337 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-main(){
-	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
-	/* the positive Rational number
-	   as represented as a/b*/
-
-	while(1){
-		int x = a/b;
-		int y = a-b*x;
-
-		
-		if(!y){                      
-            printf("%d\n",x-1);
-			break;
-		}
-		printf("%d ",x);
-		a = b;
-		b = y;
-
-
-	}
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-main(){
-	int a,b;
-	scanf("%d%d",&amp;a,&amp;b);
-	/* the positive Rational number
-	   as represented as a/b*/
-
-	while(1){
-		int x = a/b;
-		int y = a-b*x;
-
-		
-		if(!y){                      
-            printf("%d\n",x-1);
-			break;
-		}
-		printf("%d ",x);
-		a = b;
-		b = y;
-
-
-	}
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission947863660.html b/src/lab/exp2/submission947863660.html
deleted file mode 100644
index 83ea61a5..00000000
--- a/src/lab/exp2/submission947863660.html
+++ /dev/null
@@ -1,326 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Wrong Answer </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>239 51
-</td><td>4 1 2 5 2
-</td><td>NO
-</td><td> Failed </td><td> Check your algo </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission972551679.html b/src/lab/exp2/submission972551679.html
deleted file mode 100644
index 4cbb5062..00000000
--- a/src/lab/exp2/submission972551679.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>6 
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>28
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>496
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8128
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>33550336
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8589869056
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>32
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>10201
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/submission993675339.html b/src/lab/exp2/submission993675339.html
deleted file mode 100644
index 46b23a00..00000000
--- a/src/lab/exp2/submission993675339.html
+++ /dev/null
@@ -1,317 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 2  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-main(){
-	/*perfect number or not*/
-	
-	long long n;
-	scanf("%lld",&amp;n);
-	long long sum_factors = 0;
-	long long temp = (int)sqrt((double)n);
-	long long i;
-	
-	for(i=2;i&lt;=temp;i++){
-		if(n%i==0)
-			sum_factors+=i+(n/i);
-	}
-	if(n&gt;1) //adding 1 to the sum of factors if n&gt;1
-		sum_factors++;
-
-	/*if the number is a perfect square then 
-	 observe that the square root gets added twice , i=n/i will occur */
-	if(n==temp*temp) 
-		sum_factors-=temp;
-	if(sum_factors==n)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;		
-	}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre> 
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/test.html b/src/lab/exp2/test.html
index ff26f1e9..4ed53945 100755
--- a/src/lab/exp2/test.html
+++ b/src/lab/exp2/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp2/theory.html b/src/lab/exp2/theory.html
index 91bef3c8..d418f615 100755
--- a/src/lab/exp2/theory.html
+++ b/src/lab/exp2/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 30d6bff2..661e1169 100644
--- a/src/lab/exp3/Experiment.html
+++ b/src/lab/exp3/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index b5e9358b..e04d6355 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index 4990055f..8203e4f7 100644
--- a/src/lab/exp3/Further Readings.html	
+++ b/src/lab/exp3/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index 0fabb198..ae61af46 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index d744f0c0..a8ce6731 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index d6f15e3e..783699ec 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Take care of data type of n(parameter) 
   while passing arguments 
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 767114c2..5f3ddc1f 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index f269f0c6..6d9b9518 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index 1575b952..c1dc74e2 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 6966af73..378b7fcf 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index aaac497b..8da8cd23 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index aaac497b..8da8cd23 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -2,7 +2,7 @@
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 2da06cd8..8ad916b3 100644
--- a/src/lab/exp3/Introduction.html
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diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index 53458764..535c8038 100644
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diff --git a/src/lab/exp3/Objective.html b/src/lab/exp3/Objective.html
index e0bc56f7..f09b473f 100644
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diff --git a/src/lab/exp3/Procedure.html b/src/lab/exp3/Procedure.html
index 586967e0..742dd056 100644
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diff --git a/src/lab/exp3/Quizzes.html b/src/lab/exp3/Quizzes.html
index f5f4a340..039e2344 100644
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diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 70ad7f5a..3b03ea98 100644
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp3/default.html b/src/lab/exp3/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp3/default.html
+++ b/src/lab/exp3/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp3/edit_area/plugins/charmap/popup.html b/src/lab/exp3/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp3/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp3/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp3/furtherReadings.html b/src/lab/exp3/furtherReadings.html
index 2706fedc..56c6df2e 100755
--- a/src/lab/exp3/furtherReadings.html
+++ b/src/lab/exp3/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/lab.html b/src/lab/exp3/lab.html
index 19f51de0..54e235a1 100755
--- a/src/lab/exp3/lab.html
+++ b/src/lab/exp3/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/lab_test.html b/src/lab/exp3/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp3/lab_test.html
+++ b/src/lab/exp3/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp3/objective.html b/src/lab/exp3/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp3/objective.html
+++ b/src/lab/exp3/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/prob_desc.html b/src/lab/exp3/prob_desc.html
index 73660d21..570b4db0 100755
--- a/src/lab/exp3/prob_desc.html
+++ b/src/lab/exp3/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 				<ol>
diff --git a/src/lab/exp3/quiz.html b/src/lab/exp3/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp3/quiz.html
+++ b/src/lab/exp3/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/submission055278960.html b/src/lab/exp3/submission055278960.html
deleted file mode 100644
index 781ab655..00000000
--- a/src/lab/exp3/submission055278960.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>1
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>93233256
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>8589869056
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>33550336
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>3231
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission212453558.html b/src/lab/exp3/submission212453558.html
deleted file mode 100644
index fffef7bc..00000000
--- a/src/lab/exp3/submission212453558.html
+++ /dev/null
@@ -1,339 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<p>Please insert your code here</p>
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission263772451.html b/src/lab/exp3/submission263772451.html
deleted file mode 100644
index 900aa43c..00000000
--- a/src/lab/exp3/submission263772451.html
+++ /dev/null
@@ -1,325 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (mult;iplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		mult;iplication_digit = arr[index];
-		index++;
-	}while((mult;iplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:17:16: error: 'mult' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:17:16: note: each undeclared identifier is reported only once for each function it appears in<br/>c:17:20: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c:20:8: error: 'iplication_digit' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:22:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission337734160.html b/src/lab/exp3/submission337734160.html
deleted file mode 100644
index d3031928..00000000
--- a/src/lab/exp3/submission337734160.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>1
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>93233256
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>8589869056
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>33550336
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>3231
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission556366744.html b/src/lab/exp3/submission556366744.html
deleted file mode 100644
index ef44e396..00000000
--- a/src/lab/exp3/submission556366744.html
+++ /dev/null
@@ -1,354 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int mult;iplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (mult;iplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		mult;iplication_digit = arr[index];
-		index++;
-	}while((mult;iplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:11:11: note: each undeclared identifier is reported only once for each function it appears in<br/>c:16:20: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c:21:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int mult;iplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (mult;iplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		mult;iplication_digit = arr[index];
-		index++;
-	}while((mult;iplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission577197253.html b/src/lab/exp3/submission577197253.html
deleted file mode 100644
index a60d4b2d..00000000
--- a/src/lab/exp3/submission577197253.html
+++ /dev/null
@@ -1,338 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission586661222.html b/src/lab/exp3/submission586661222.html
deleted file mode 100644
index 4dbefbb2..00000000
--- a/src/lab/exp3/submission586661222.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>1
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>93233256
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>8589869056
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>33550336
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>3231
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission600928592.html b/src/lab/exp3/submission600928592.html
deleted file mode 100644
index 3e8ffc77..00000000
--- a/src/lab/exp3/submission600928592.html
+++ /dev/null
@@ -1,324 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>1
-</td><td>NO
-</td><td>YES
-</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission607839095.html b/src/lab/exp3/submission607839095.html
deleted file mode 100644
index 4d69f2cd..00000000
--- a/src/lab/exp3/submission607839095.html
+++ /dev/null
@@ -1,354 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int mult;iplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (mult;iplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		mult;iplication_digit = arr[index];
-		index++;
-	}while((mult;iplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/>c: In function 'main':<br/>c:11:11: error: 'iplication_digit' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:11:11: note: each undeclared identifier is reported only once for each function it appears in<br/>c:16:20: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c:21:14: error: expected ')' before ';' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int mult;iplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (mult;iplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		mult;iplication_digit = arr[index];
-		index++;
-	}while((mult;iplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission705623947.html b/src/lab/exp3/submission705623947.html
deleted file mode 100644
index e6ceed22..00000000
--- a/src/lab/exp3/submission705623947.html
+++ /dev/null
@@ -1,351 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (multiplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		multiplication_digit = arr[index];
-		index++;
-	}while((multiplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (multiplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		multiplication_digit = arr[index];
-		index++;
-	}while((multiplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission737740138.html b/src/lab/exp3/submission737740138.html
deleted file mode 100644
index ac8e4988..00000000
--- a/src/lab/exp3/submission737740138.html
+++ /dev/null
@@ -1,353 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (multiplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		multiplication_digit = arr[index];
-		index++;
-	}while((multiplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>2
-</td><td>105263157894736842
-</td><td>105263157894736842
-</td><td> Passed </td></tr><tr><td>6
-</td><td>1016949152542372881355932203389830508474576271186440677966
-</td><td>1016949152542372881355932203389830508474576271186440677966
-</td><td> Passed </td></tr><tr><td>8
-</td><td>1012658227848
-</td><td>1012658227848
-</td><td> Passed </td></tr><tr><td>9
-</td><td>10112359550561797752808988764044943820224719
-</td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr><tr><td>7
-</td><td>1014492753623188405797
-</td><td>1014492753623188405797
-</td><td> Passed </td></tr><tr><td>3
-</td><td>1034482758620689655172413793
-</td><td>1034482758620689655172413793
-</td><td> Passed </td></tr><tr><td>4
-</td><td>102564
-</td><td>102564
-</td><td> Passed </td></tr><tr><td>9
-</td><td>10112359550561797752808988764044943820224719
-</td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission743135170.html b/src/lab/exp3/submission743135170.html
deleted file mode 100644
index 6e3edaed..00000000
--- a/src/lab/exp3/submission743135170.html
+++ /dev/null
@@ -1,322 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (multiplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		multiplication_digit = arr[index];
-		index++;
-	}while((multiplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission807423932.html b/src/lab/exp3/submission807423932.html
deleted file mode 100644
index f579b496..00000000
--- a/src/lab/exp3/submission807423932.html
+++ /dev/null
@@ -1,338 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission812920506.html b/src/lab/exp3/submission812920506.html
deleted file mode 100644
index 7d38990e..00000000
--- a/src/lab/exp3/submission812920506.html
+++ /dev/null
@@ -1,351 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-
-main(){
-  
-	int unit_digit;
-	scanf("%d",&amp;unit_digit);
-	int arr[500];
-	int index=0;
-
-    
-	int multiplication_digit = unit_digit;
-	int carry=0;
-
-	do{
-        
-		int value = (multiplication_digit*unit_digit+carry);
-		arr[index]=value%10;
-		carry=value/10; 
-		multiplication_digit = arr[index];
-		index++;
-	}while((multiplication_digit!=unit_digit)||carry);
-	
-	
-	int i;
-	for(i=index-2;i&gt;=0;i--)
-		printf("%d",arr[i]);
-	printf("%d\n",arr[index-1]);
-    
-	
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>2
-</td><td>105263157894736842
-</td><td>105263157894736842
-</td><td> Passed </td></tr><tr><td>6
-</td><td>1016949152542372881355932203389830508474576271186440677966
-</td><td>1016949152542372881355932203389830508474576271186440677966
-</td><td> Passed </td></tr><tr><td>8
-</td><td>1012658227848
-</td><td>1012658227848
-</td><td> Passed </td></tr><tr><td>9
-</td><td>10112359550561797752808988764044943820224719
-</td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr><tr><td>7
-</td><td>1014492753623188405797
-</td><td>1014492753623188405797
-</td><td> Passed </td></tr><tr><td>3
-</td><td>1034482758620689655172413793
-</td><td>1034482758620689655172413793
-</td><td> Passed </td></tr><tr><td>4
-</td><td>102564
-</td><td>102564
-</td><td> Passed </td></tr><tr><td>9
-</td><td>10112359550561797752808988764044943820224719
-</td><td>10112359550561797752808988764044943820224719
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/submission971228782.html b/src/lab/exp3/submission971228782.html
deleted file mode 100644
index 67de01f7..00000000
--- a/src/lab/exp3/submission971228782.html
+++ /dev/null
@@ -1,314 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 3  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-#include&lt;stdio.h&gt;
-
-
-int sum_digits(long long n){
-	return n?(n%10)+sum_digits(n/10):0;
-}
-
-
-int main(){
-	long long n;
-	scanf("%lld",&amp;n);
-	/*we go on calculating the sum of the digits 
-	  of the result;ing number until it becomes less
-	 than or equal to 9*/
-	while(n&gt;9)
-          n=sum_digits(n);
-    
-	
-	if(n==9)
-		printf("YES\n");
-	else
-		printf("NO\n");
-	return 0;
-}
-		</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/test.html b/src/lab/exp3/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp3/test.html
+++ b/src/lab/exp3/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp3/theory.html b/src/lab/exp3/theory.html
index 9ac97ed4..2b5a3e60 100755
--- a/src/lab/exp3/theory.html
+++ b/src/lab/exp3/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 57b773f0..5b26183c 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 6e0259a6..5372ad87 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
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diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 251af73e..fccdee7f 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index a4dda7eb..e4db9776 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare N and scan N 
 
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index faff0b0e..3af9f077 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
 main(){
 -&gt; declare N and scan N 
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index 00b2e387..dfae994c 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
 main(){
 
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 5fc1ad5c..3c3267ca 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
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@@ -2,5 +2,5 @@
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index cd756947..dd405019 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;int N
 
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index de523f62..c7df9e82 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;int N
 
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index 994e7189..e035e806 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index 994e7189..e035e806 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index e7976c7f..37111ae4 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -29,7 +29,7 @@
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diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index f39f3a7f..e0bd907b 100644
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+++ b/src/lab/exp4/Manual.html
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diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index e23c86a1..50a4ff5c 100644
--- a/src/lab/exp4/Objective.html
+++ b/src/lab/exp4/Objective.html
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diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index 6f9a056d..ea284e28 100644
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 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quizzes.html
index c26e389f..61612e80 100644
--- a/src/lab/exp4/Quizzes.html
+++ b/src/lab/exp4/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 21dbaa2d..55955a91 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp4/default.html b/src/lab/exp4/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp4/default.html
+++ b/src/lab/exp4/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp4/edit_area/plugins/charmap/popup.html b/src/lab/exp4/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp4/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp4/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp4/furtherReadings.html b/src/lab/exp4/furtherReadings.html
index 2706fedc..56c6df2e 100755
--- a/src/lab/exp4/furtherReadings.html
+++ b/src/lab/exp4/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/lab.html b/src/lab/exp4/lab.html
index a29a9759..10693f90 100755
--- a/src/lab/exp4/lab.html
+++ b/src/lab/exp4/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/lab_test.html b/src/lab/exp4/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp4/lab_test.html
+++ b/src/lab/exp4/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp4/objective.html b/src/lab/exp4/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp4/objective.html
+++ b/src/lab/exp4/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/prob_desc.html b/src/lab/exp4/prob_desc.html
index f44d97d5..18a48070 100755
--- a/src/lab/exp4/prob_desc.html
+++ b/src/lab/exp4/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 		<ol>
diff --git a/src/lab/exp4/quiz.html b/src/lab/exp4/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp4/quiz.html
+++ b/src/lab/exp4/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/submission010965066.html b/src/lab/exp4/submission010965066.html
deleted file mode 100644
index 0dea9f9d..00000000
--- a/src/lab/exp4/submission010965066.html
+++ /dev/null
@@ -1,298 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-<br <="" span=""/></span>
-   
-   
-</span></div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission099031407.html b/src/lab/exp4/submission099031407.html
deleted file mode 100644
index bd93f05e..00000000
--- a/src/lab/exp4/submission099031407.html
+++ /dev/null
@@ -1,323 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>158
-</td><td>158
-</td><td> Passed </td></tr><tr><td>65
-</td><td>91
-</td><td>91
-</td><td> Passed </td></tr><tr><td>13
-</td><td>10
-</td><td>10
-</td><td> Passed </td></tr><tr><td>5
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>100000
-</td><td>456574
-</td><td>456574
-</td><td> Passed </td></tr><tr><td>1000000
-</td><td>5565709
-</td><td>5565709
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-<br <="" span=""/></span>
-   
-   
-</span></div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission537352138.html b/src/lab/exp4/submission537352138.html
deleted file mode 100644
index 3371f764..00000000
--- a/src/lab/exp4/submission537352138.html
+++ /dev/null
@@ -1,320 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-
-#include&lt;stdio.h&gt;
-main(){
-	 int N;
-
-	 scanf("%d",&amp;N);
-	 int power_five = 0;
-
-	 while(N){
-		power_five+=N/5;
-		N/=5;
-	 }
-	 printf("%d\n",power_five);
-	
- return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-main(){
-	 int N;
-
-	 scanf("%d",&amp;N);
-	 int power_five = 0;
-
-	 while(N){
-		power_five+=N/5;
-		N/=5;
-	 }
-	 printf("%d\n",power_five);
-	
- return 0;
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission575172690.html b/src/lab/exp4/submission575172690.html
deleted file mode 100644
index c30fb6eb..00000000
--- a/src/lab/exp4/submission575172690.html
+++ /dev/null
@@ -1,312 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission598456765.html b/src/lab/exp4/submission598456765.html
deleted file mode 100644
index 98138410..00000000
--- a/src/lab/exp4/submission598456765.html
+++ /dev/null
@@ -1,322 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100
-</td><td>158
-</td><td>158
-</td><td> Passed </td></tr><tr><td>65
-</td><td>91
-</td><td>91
-</td><td> Passed </td></tr><tr><td>13
-</td><td>10
-</td><td>10
-</td><td> Passed </td></tr><tr><td>5
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>100000
-</td><td>456574
-</td><td>456574
-</td><td> Passed </td></tr><tr><td>1000000
-</td><td>5565709
-</td><td>5565709
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-<br <="" span=""/></span>
-   
-   
-</span></div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission822434122.html b/src/lab/exp4/submission822434122.html
deleted file mode 100644
index 29742260..00000000
--- a/src/lab/exp4/submission822434122.html
+++ /dev/null
@@ -1,313 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result; = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/>c: In function 'main':<br/>c:5:16: error: expected expression before '=' token<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include &lt;stdio.h&gt;
-#include &lt;math.h&gt;
-main(){
-int N,i;
-double result; = 0;
-scanf("%d",&amp;N);
-
-for(i=1;i&lt;=N;i++)
-	result+=log10(i);
-
-printf("%d\n",(int)result+1);
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/submission902808767.html b/src/lab/exp4/submission902808767.html
deleted file mode 100644
index d8321eca..00000000
--- a/src/lab/exp4/submission902808767.html
+++ /dev/null
@@ -1,322 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 4 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-
-#include&lt;stdio.h&gt;
-main(){
-	 int N;
-
-	 scanf("%d",&amp;N);
-	 int power_five = 0;
-
-	 while(N){
-		power_five+=N/5;
-		N/=5;
-	 }
-	 printf("%d\n",power_five);
-	
- return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="&lt;br"/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10
-</td><td>2
-</td><td>2
-</td><td> Passed </td></tr><tr><td>3283833
-</td><td>820954
-</td><td>820954
-</td><td> Passed </td></tr><tr><td>900000000
-</td><td>224999997
-</td><td>224999997
-</td><td> Passed </td></tr><tr><td>43674343
-</td><td>10918579
-</td><td>10918579
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-<br <="" span=""/></span>
-   
-   
-</span></div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/test.html b/src/lab/exp4/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp4/test.html
+++ b/src/lab/exp4/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp4/theory.html b/src/lab/exp4/theory.html
index cfeaa65f..5262241e 100755
--- a/src/lab/exp4/theory.html
+++ b/src/lab/exp4/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index 280bb757..8d6ca0f2 100644
--- a/src/lab/exp5/Experiment.html
+++ b/src/lab/exp5/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index 81219a2e..4a2d90e4 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index 66a50313..5cadd0de 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index 8b673931..d0b12dfb 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index ea95a1b0..39e9fb8f 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index fef260ca..1553b72e 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index 954768be..46c475cb 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index e99d90af..0b00acec 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan them 
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index adbffcb3..1680fa58 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan the strings 
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index 0361f35d..4d818ec7 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan the strings 
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 062744fc..fce5a074 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index 4097e4f1..86c273c3 100644
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diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
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diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index 02d572c1..cd907341 100644
--- a/src/lab/exp5/Procedure.html
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diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index bb96e6c4..c5e7618b 100644
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diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
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diff --git a/src/lab/exp5/default.html b/src/lab/exp5/default.html
index 13e6895b..270995af 100644
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diff --git a/src/lab/exp5/edit_area/plugins/charmap/popup.html b/src/lab/exp5/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
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 <div class="preview" id="preview_code"></div>
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index 2706fedc..56c6df2e 100755
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deleted file mode 100644
index 097ecc40..00000000
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+++ /dev/null
@@ -1,350 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 5 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-#include&lt;math.h&gt;
-int isAlphabet(char x){
-	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
-}
-main(){
-char s[1001];
-scanf("%[^\n]s",s);
-int i=0,j=strlen(s)-1;
-int flag=1;
-while(i &lt; j){
-	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
-	if(i&gt;=j)
-		break;
-	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
-		i++,j--;
-	else{
-		flag=0;
-		break;
-	}
-}
-if(flag)
-	printf("YES\n");
-else
-	 printf("NO\n");
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-#include&lt;math.h&gt;
-int isAlphabet(char x){
-	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
-}
-main(){
-char s[1001];
-scanf("%[^\n]s",s);
-int i=0,j=strlen(s)-1;
-int flag=1;
-while(i &lt; j){
-	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
-	if(i&gt;=j)
-		break;
-	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
-		i++,j--;
-	else{
-		flag=0;
-		break;
-	}
-}
-if(flag)
-	printf("YES\n");
-else
-	 printf("NO\n");
-
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission109007246.html b/src/lab/exp5/submission109007246.html
deleted file mode 100644
index 48fbde1f..00000000
--- a/src/lab/exp5/submission109007246.html
+++ /dev/null
@@ -1,350 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 5 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-#include&lt;math.h&gt;
-int isAlphabet(char x){
-	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
-}
-main(){
-char s[1001];
-scanf("%[^\n]s",s);
-int i=0,j=strlen(s)-1;
-int flag=1;
-while(i &lt; j){
-	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[i]))i++;	
-	while(i &lt; j &amp;&amp; !isAlphabet(s[j]))j--;	
-	if(i&gt;=j)
-		break;
-	if( (s[i]==s[j]||abs(s[i]-s[j])==32)) 
-		i++,j--;
-	else{
-		flag=0;
-		break;
-	}
-}
-if(flag)
-	printf("YES\n");
-else
-	 printf("NO\n");
-
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>Madam, I’m Adam...
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>Eve.
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>Ma'[l'a^Ya*l..am
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>Was it a rat I saw?
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>A nut for a jar of tuna
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>Ma is as selfless as I am
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>Dammit, I'm mad!
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>madhava rao nasini
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission237047629.html b/src/lab/exp5/submission237047629.html
deleted file mode 100644
index 93bce3d1..00000000
--- a/src/lab/exp5/submission237047629.html
+++ /dev/null
@@ -1,321 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 5 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	#include&lt;stdio.h&gt;
-main(){
-char str1[2000];
-char str2[2000];
-scanf("%s %s",str1,str2);
-int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
-		if(str2[index2]==str1[index1]) 
-			index2++;
-}
-if(str2[index2]=='\0') 
-	puts("YES");
-else 
-	puts("NO");
-return 0;
-}	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-main(){
-char str1[2000];
-char str2[2000];
-scanf("%s %s",str1,str2);
-int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
-		if(str2[index2]==str1[index1]) 
-			index2++;
-}
-if(str2[index2]=='\0') 
-	puts("YES");
-else 
-	puts("NO");
-return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/submission533718369.html b/src/lab/exp5/submission533718369.html
deleted file mode 100644
index 0b2cfc89..00000000
--- a/src/lab/exp5/submission533718369.html
+++ /dev/null
@@ -1,323 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 5 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	#include&lt;stdio.h&gt;
-main(){
-char str1[2000];
-char str2[2000];
-scanf("%s %s",str1,str2);
-int index1,index2;
-for(index1=0,index2=0;str1[index1]!='\0'&amp;&amp;str2[index2]!='\0';index1++){
-		if(str2[index2]==str1[index1]) 
-			index2++;
-}
-if(str2[index2]=='\0') 
-	puts("YES");
-else 
-	puts("NO");
-return 0;
-}	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>hyderabad rd 
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>madhava am
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>rashtrapathi rrh
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>mumbai ubai
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/test.html b/src/lab/exp5/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp5/test.html
+++ b/src/lab/exp5/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp5/theory.html b/src/lab/exp5/theory.html
index b5e57c1f..b957a54f 100755
--- a/src/lab/exp5/theory.html
+++ b/src/lab/exp5/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index 29d13075..0ea51f9c 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index 3dcb6477..15661c38 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index f767db95..9eb4a780 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 63570414..0b997636 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index 9b9dd469..c10c2464 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index b74e65b8..ef3240b9 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index df5bf4c4..1f1110b6 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index df5bf4c4..1f1110b6 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index 9c869704..5cba74dd 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
 	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index b2788dbc..6214bb17 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 8387b681..3c74cc39 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index af5f5639..4ec88912 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 9980ff71..1f4e278c 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
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 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp6/objective.html b/src/lab/exp6/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp6/objective.html
+++ b/src/lab/exp6/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/prob_desc.html b/src/lab/exp6/prob_desc.html
index 138eb439..a910141f 100755
--- a/src/lab/exp6/prob_desc.html
+++ b/src/lab/exp6/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 <ol>
diff --git a/src/lab/exp6/quiz.html b/src/lab/exp6/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp6/quiz.html
+++ b/src/lab/exp6/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/submission078498950.html b/src/lab/exp6/submission078498950.html
deleted file mode 100644
index e96265e9..00000000
--- a/src/lab/exp6/submission078498950.html
+++ /dev/null
@@ -1,335 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 6 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int N;
-int no_ways(int W,int index){
-	
-	if(!W)
-		return 1;
-	if(index==N)
-		return 0;
-
-	int ans = 0,i;
-	for(i=0;i*(1&lt;&lt;index)&lt;=W;i++)
-		ans+=no_ways(W-i*(1&lt;&lt;index),index+1);
-
-	return ans;
-	
-}
-main(){
-	int W;
-	scanf("%d%d",&amp;N,&amp;W);
-
-	printf("%d\n",no_ways(W,0));
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int N;
-int no_ways(int W,int index){
-	
-	if(!W)
-		return 1;
-	if(index==N)
-		return 0;
-
-	int ans = 0,i;
-	for(i=0;i*(1&lt;&lt;index)&lt;=W;i++)
-		ans+=no_ways(W-i*(1&lt;&lt;index),index+1);
-
-	return ans;
-	
-}
-main(){
-	int W;
-	scanf("%d%d",&amp;N,&amp;W);
-
-	printf("%d\n",no_ways(W,0));
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission376667958.html b/src/lab/exp6/submission376667958.html
deleted file mode 100644
index a0a5b55d..00000000
--- a/src/lab/exp6/submission376667958.html
+++ /dev/null
@@ -1,334 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 6 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int N;
-int no_ways(int W,int index){
-	
-	if(!W)
-		return 1;
-	if(index==N)
-		return 0;
-
-	int ans = 0,i;
-	for(i=0;i*(1&lt;&lt;index)&lt;=W;i++)
-		ans+=no_ways(W-i*(1&lt;&lt;index),index+1);
-
-	return ans;
-	
-}
-main(){
-	int W;
-	scanf("%d%d",&amp;N,&amp;W);
-
-	printf("%d\n",no_ways(W,0));
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>5 10
-</td><td>14
-</td><td>14
-</td><td> Passed </td></tr><tr><td>4 6
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>5 15
-</td><td>26
-</td><td>26
-</td><td> Passed </td></tr><tr><td>7 23
-</td><td>74
-</td><td>74
-</td><td> Passed </td></tr><tr><td>4 10
-</td><td>14
-</td><td>14
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission416502186.html b/src/lab/exp6/submission416502186.html
deleted file mode 100644
index 6a2ddb04..00000000
--- a/src/lab/exp6/submission416502186.html
+++ /dev/null
@@ -1,333 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 6 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-int isPossible(int N,int D,int *weight){
-	if(!N)
-		return !D;
-  	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
-}
-
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weights[N],i,D;
-	for(i=0;i&lt;N ;i++){
-		scanf("%d",weights+i);
-	}
-	scanf("%d",&amp;D);
-	if(isPossible(N,D,weights))
-		puts("YES");
-	else
-		puts("NO");
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-
-int isPossible(int N,int D,int *weight){
-	if(!N)
-		return !D;
-  	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
-}
-
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weights[N],i,D;
-	for(i=0;i&lt;N ;i++){
-		scanf("%d",weights+i);
-	}
-	scanf("%d",&amp;D);
-	if(isPossible(N,D,weights))
-		puts("YES");
-	else
-		puts("NO");
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission667231208.html b/src/lab/exp6/submission667231208.html
deleted file mode 100644
index 40989886..00000000
--- a/src/lab/exp6/submission667231208.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 6 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-
-int isPossible(int N,int D,int *weight){
-	if(!N)
-		return !D;
-  	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
-}
-
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weights[N],i,D;
-	for(i=0;i&lt;N ;i++){
-		scanf("%d",weights+i);
-	}
-	scanf("%d",&amp;D);
-	if(isPossible(N,D,weights))
-		puts("YES");
-	else
-		puts("NO");
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 1 3 4 2
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>2 1 3 5
-</td><td>NO
-</td><td>NO
-</td><td> Passed </td></tr><tr><td>8 67 71 97 58 7 50 32 93 77
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8 78 75 95 7 30 73 31 16 86
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8 87 13 96 38 65 93 24 6 95
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr><tr><td>8 50 50 20 28 81 67 48 50 16
-</td><td>YES
-</td><td>YES
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/submission830260742.html b/src/lab/exp6/submission830260742.html
deleted file mode 100644
index 068f05d2..00000000
--- a/src/lab/exp6/submission830260742.html
+++ /dev/null
@@ -1,311 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 6 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-
-int isPossible(int N,int D,int *weight){
-	if(!N)
-		return !D;
-  	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
-}
-
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weights[N],i,D;
-	for(i=0;i&lt;N ;i++){
-		scanf("%d",weights+i);
-	}
-	scanf("%d",&amp;D);
-	if(isPossible(N,D,weights))
-		puts("YES");
-	else
-		puts("NO");
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/test.html b/src/lab/exp6/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp6/test.html
+++ b/src/lab/exp6/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp6/theory.html b/src/lab/exp6/theory.html
index 52122e44..4c2e7e9b 100755
--- a/src/lab/exp6/theory.html
+++ b/src/lab/exp6/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
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diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index b9a8747d..90553306 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index 21a67f9e..c8b6c3de 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index 47d39589..7d2ebc6d 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index a833efe8..c05fcc26 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	-&gt;scan the two integers
 	    in the form of the strings
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index 49c93a47..2f3fced1 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index 26c37e23..c2fe8177 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index f995c753..d930726a 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 main(){
 	char s1[51],s2[51];
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index 24a8186f..69c79172 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;The square root must 
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index 9649e736..194ee180 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;The square root must 
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index 4ef5e4c9..e718b207 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index 0453dde3..2f8f1e02 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 1cc2b566..3d7eb3d1 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index 74c0c06c..58c69414 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 10751dbe..0b59e5ff 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index a7512fa4..171fea86 100644
--- a/src/lab/exp7/Procedure.html
+++ b/src/lab/exp7/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quizzes.html
index 5ada23cd..3f6591a9 100644
--- a/src/lab/exp7/Quizzes.html
+++ b/src/lab/exp7/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index ce699ce9..e0c47ba1 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp7/default.html b/src/lab/exp7/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp7/default.html
+++ b/src/lab/exp7/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp7/edit_area/plugins/charmap/popup.html b/src/lab/exp7/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp7/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp7/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp7/furtherReadings.html b/src/lab/exp7/furtherReadings.html
index 2706fedc..56c6df2e 100755
--- a/src/lab/exp7/furtherReadings.html
+++ b/src/lab/exp7/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/lab.html b/src/lab/exp7/lab.html
index 995280d8..83006b26 100755
--- a/src/lab/exp7/lab.html
+++ b/src/lab/exp7/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/lab_test.html b/src/lab/exp7/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp7/lab_test.html
+++ b/src/lab/exp7/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp7/objective.html b/src/lab/exp7/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp7/objective.html
+++ b/src/lab/exp7/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/prob_desc.html b/src/lab/exp7/prob_desc.html
index 146726ea..9bc4062e 100755
--- a/src/lab/exp7/prob_desc.html
+++ b/src/lab/exp7/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 				<div id="content">
 				<ol>
 	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br/><br/><hr/>
diff --git a/src/lab/exp7/quiz.html b/src/lab/exp7/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp7/quiz.html
+++ b/src/lab/exp7/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/submission190225116.html b/src/lab/exp7/submission190225116.html
deleted file mode 100644
index 44dfc403..00000000
--- a/src/lab/exp7/submission190225116.html
+++ /dev/null
@@ -1,350 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 7 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission227837884.html b/src/lab/exp7/submission227837884.html
deleted file mode 100644
index b3d2ff79..00000000
--- a/src/lab/exp7/submission227837884.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 7 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int N;
-double mysqrt(double start,double end){
-
-	
-	double mid = (start+end)/2;
-
-	if(fabs(mid*mid-N)&lt;=1e-4)
-		return mid;
-
-	if(mid*mid &gt; N){
-		return mysqrt(start,mid-1);
-	}
-	else {
-		return mysqrt(mid+1,end);
-	}
-
-}
-main(){
-	scanf("%d",&amp;N);
-	printf("%.4lf\n",mysqrt(1,N));
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int N;
-double mysqrt(double start,double end){
-
-	
-	double mid = (start+end)/2;
-
-	if(fabs(mid*mid-N)&lt;=1e-4)
-		return mid;
-
-	if(mid*mid &gt; N){
-		return mysqrt(start,mid-1);
-	}
-	else {
-		return mysqrt(mid+1,end);
-	}
-
-}
-main(){
-	scanf("%d",&amp;N);
-	printf("%.4lf\n",mysqrt(1,N));
-return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission419966738.html b/src/lab/exp7/submission419966738.html
deleted file mode 100644
index d77bb7cb..00000000
--- a/src/lab/exp7/submission419966738.html
+++ /dev/null
@@ -1,331 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 7 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;math.h&gt;
-int N;
-double mysqrt(double start,double end){
-
-	
-	double mid = (start+end)/2;
-
-	if(fabs(mid*mid-N)&lt;=1e-4)
-		return mid;
-
-	if(mid*mid &gt; N){
-		return mysqrt(start,mid-1);
-	}
-	else {
-		return mysqrt(mid+1,end);
-	}
-
-}
-main(){
-	scanf("%d",&amp;N);
-	printf("%.4lf\n",mysqrt(1,N));
-return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>101010101
-</td><td>10050.3782
-</td><td>10050.3782
-</td><td> Passed </td></tr><tr><td>3283833
-</td><td>1812.1349
-</td><td>1812.1349
-</td><td> Passed </td></tr><tr><td>34343438
-</td><td>5860.3275
-</td><td>5860.3275
-</td><td> Passed </td></tr><tr><td>498439
-</td><td>706.0021
-</td><td>706.0021
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/submission491787357.html b/src/lab/exp7/submission491787357.html
deleted file mode 100644
index 9dab52eb..00000000
--- a/src/lab/exp7/submission491787357.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 7 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-main(){
-	char s1[51],s2[51];
-	scanf("%s %s",s1,s2);
-	char sum[52];
-	
-	int l1 = strlen(s1),l2 = strlen(s2),index = 0,carry=0,value,i,j;
-	for(i=l1-1,j=l2-1;i&gt;=0 || j&gt;=0;){
-                           
-		value = carry;
-		if(i&gt;=0){
-			value+=(s1[i]-'0');
-			i--;
-		}
-		if(j&gt;=0){
-			value+=(s2[j]-'0');
-			j--;
-		}
-		sum[index++]=(char)(value%10 + '0');
-		carry = value/10;
-	}
-	//take care of the cases like 99+1
-	if(carry)
-		sum[index++]='1';
-		
-	for(i=index-1;i&gt;=0;i--)
-		printf("%c",sum[i]);
-	puts("");
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>100 58
-</td><td>158
-</td><td>158
-</td><td> Passed </td></tr><tr><td>323289329329392893 3283928392839283928932329
-</td><td>3283928716128613258325222
-</td><td>3283928716128613258325222
-</td><td> Passed </td></tr><tr><td>323289329329392893 999999939283928390032329
-</td><td>1000000262573257719425222
-</td><td>1000000262573257719425222
-</td><td> Passed </td></tr><tr><td>23 79
-</td><td>102
-</td><td>102
-</td><td> Passed </td></tr><tr><td>3283928392839283928932329 323289329329392893
-</td><td>3283928716128613258325222
-</td><td>3283928716128613258325222
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/test.html b/src/lab/exp7/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp7/test.html
+++ b/src/lab/exp7/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
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+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
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diff --git a/src/lab/exp7/theory.html b/src/lab/exp7/theory.html
index 0078f6c6..0ea38606 100755
--- a/src/lab/exp7/theory.html
+++ b/src/lab/exp7/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
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+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index 00f2c454..d9f5ed7a 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -29,7 +29,7 @@
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diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
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diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 1db6b354..95b2ee6b 100644
--- a/src/lab/exp8/Further Readings.html	
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diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
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@@ -2,5 +2,5 @@
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 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
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\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index 10e27b05..2ace9352 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 	-&gt;declare and scan N
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index fff5d9ad..a694595a 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index ab8920bc..7e5cff41 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 	-&gt;termination condition
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index 2b52d5c5..c4338716 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
 	return *((int *)a)&gt;*((int *)b);
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
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 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
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\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index 13fb2156..b1512d5d 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index 01aa7268..3ebdfc31 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index fd0aa05a..30613205 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 67fce3e3..af961b78 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 main(){
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index bbbfa4b9..b894bf33 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index be2cd948..fd51b0eb 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index fa82c86a..7c5fb402 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
index 840732a6..e365ef72 100644
--- a/src/lab/exp8/Procedure.html
+++ b/src/lab/exp8/Procedure.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quizzes.html
index 166ef6cc..05a79cb9 100644
--- a/src/lab/exp8/Quizzes.html
+++ b/src/lab/exp8/Quizzes.html
@@ -60,7 +60,7 @@
 
 
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 6166b82f..44508754 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp8/default.html b/src/lab/exp8/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp8/default.html
+++ b/src/lab/exp8/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp8/edit_area/plugins/charmap/popup.html b/src/lab/exp8/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp8/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp8/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp8/furtherReadings.html b/src/lab/exp8/furtherReadings.html
index 2706fedc..56c6df2e 100755
--- a/src/lab/exp8/furtherReadings.html
+++ b/src/lab/exp8/furtherReadings.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/lab.html b/src/lab/exp8/lab.html
index 8181c471..bec3f72a 100755
--- a/src/lab/exp8/lab.html
+++ b/src/lab/exp8/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/lab_test.html b/src/lab/exp8/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp8/lab_test.html
+++ b/src/lab/exp8/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp8/objective.html b/src/lab/exp8/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp8/objective.html
+++ b/src/lab/exp8/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/prob_desc.html b/src/lab/exp8/prob_desc.html
index 495ae465..13b2d2b0 100755
--- a/src/lab/exp8/prob_desc.html
+++ b/src/lab/exp8/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 							<li> <h2>Problem 1:</h2>
diff --git a/src/lab/exp8/quiz.html b/src/lab/exp8/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp8/quiz.html
+++ b/src/lab/exp8/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/submission046206449.html b/src/lab/exp8/submission046206449.html
deleted file mode 100644
index 5bcd312a..00000000
--- a/src/lab/exp8/submission046206449.html
+++ /dev/null
@@ -1,389 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLengt;h = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLengt;h==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLengt;h);
-	}
-	return 0;
-}
-
-Highest Level </textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/>c: In function 'main':<br/>c:24:15: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:24:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:36:30: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:41:13: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:45:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:50:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:50:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLengt;h = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLengt;h==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLengt;h);
-	}
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission173316296.html b/src/lab/exp8/submission173316296.html
deleted file mode 100644
index dbd89866..00000000
--- a/src/lab/exp8/submission173316296.html
+++ /dev/null
@@ -1,347 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission299697804.html b/src/lab/exp8/submission299697804.html
deleted file mode 100644
index f96773ee..00000000
--- a/src/lab/exp8/submission299697804.html
+++ /dev/null
@@ -1,390 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10
-88
-61
-49
-65
-16
-57
-33
-12
-20
-16
-</td><td>69
-</td><td>69
-</td><td> Passed </td></tr><tr><td>10
-56
-41
-66
-5
-92
-62
-18
-15
-78
-65
-</td><td>60
-</td><td>60
-</td><td> Passed </td></tr><tr><td>10
-29
-85
-82
-89
-19
-52
-79
-67
-2
-69
-</td><td>51
-</td><td>51
-</td><td> Passed </td></tr><tr><td>10
-63
-46
-96
-71
-60
-84
-93
-52
-52
-65
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-5
-76
-88
-72
-81
-38
-37
-88
-55
-84
-</td><td>34
-</td><td>34
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission334539183.html b/src/lab/exp8/submission334539183.html
deleted file mode 100644
index f6fd8919..00000000
--- a/src/lab/exp8/submission334539183.html
+++ /dev/null
@@ -1,354 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>kdjkuewrcnmvcmv 3 w c v
-</td><td>6
-</td><td>6
-</td><td> Passed </td></tr><tr><td>fhfdftyyibvcnmn 5 c z y p h
-</td><td>-1
-</td><td>-1
-</td><td> Passed </td></tr><tr><td>appleissweet 4 i s l t
-</td><td>9
-</td><td>9
-</td><td> Passed </td></tr><tr><td>ahfjd 0
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission423347682.html b/src/lab/exp8/submission423347682.html
deleted file mode 100644
index 1d6b0788..00000000
--- a/src/lab/exp8/submission423347682.html
+++ /dev/null
@@ -1,385 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/>c: In function 'main':<br/>c:37:4: error: 'minLengt' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:37:4: note: each undeclared identifier is reported only once for each function it appears in<br/>c:37:13: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission667158425.html b/src/lab/exp8/submission667158425.html
deleted file mode 100644
index c61c687d..00000000
--- a/src/lab/exp8/submission667158425.html
+++ /dev/null
@@ -1,342 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLengt;h = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLengt;h==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLengt;h);
-	}
-	return 0;
-}
-
-Highest Level </textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/>c: In function 'main':<br/>c:25:15: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:25:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:37:30: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:42:13: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:46:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:51:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:51:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission668064004.html b/src/lab/exp8/submission668064004.html
deleted file mode 100644
index 48295723..00000000
--- a/src/lab/exp8/submission668064004.html
+++ /dev/null
@@ -1,345 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission691802271.html b/src/lab/exp8/submission691802271.html
deleted file mode 100644
index 7922d588..00000000
--- a/src/lab/exp8/submission691802271.html
+++ /dev/null
@@ -1,318 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission821300773.html b/src/lab/exp8/submission821300773.html
deleted file mode 100644
index 681315ac..00000000
--- a/src/lab/exp8/submission821300773.html
+++ /dev/null
@@ -1,343 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLengt;h = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLengt;h==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLengt;h);
-	}
-	return 0;
-}
-
-Highest Level </textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/>c: In function 'main':<br/>c:26:15: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:26:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:38:30: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:43:13: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:47:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:52:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:52:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission880470462.html b/src/lab/exp8/submission880470462.html
deleted file mode 100644
index 47caf9be..00000000
--- a/src/lab/exp8/submission880470462.html
+++ /dev/null
@@ -1,344 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Compile Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLengt;h = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLengt;h&gt; (i-minValue+1)){
-			minLengt;h = i-minValue+1;
-		}
-
-	}
-	if(minLengt;h==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLengt;h);
-	}
-	return 0;
-}
-
-Highest Level </textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/>c: In function 'main':<br/>c:27:15: error: 'h' undeclared (first use in this function)<br/>;
-<br/> ^<br/>c:27:15: note: each undeclared identifier is reported only once for each function it appears in<br/>c:39:30: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:44:13: error: expected ')' before ';' token<br/>{
-<br/> ^<br/>c:48:25: error: expected ')' before ';' token<br/>;
-<br/> ^<br/>c: At top level:<br/>c:53:1: error: unknown type name 'Highest'<br/>l <br/> ^<br/>c:53:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission943336517.html b/src/lab/exp8/submission943336517.html
deleted file mode 100644
index 98db2553..00000000
--- a/src/lab/exp8/submission943336517.html
+++ /dev/null
@@ -1,390 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10
-88
-61
-49
-65
-16
-57
-33
-12
-20
-16
-</td><td>69
-</td><td>69
-</td><td> Passed </td></tr><tr><td>10
-56
-41
-66
-5
-92
-62
-18
-15
-78
-65
-</td><td>60
-</td><td>60
-</td><td> Passed </td></tr><tr><td>10
-29
-85
-82
-89
-19
-52
-79
-67
-2
-69
-</td><td>51
-</td><td>51
-</td><td> Passed </td></tr><tr><td>10
-63
-46
-96
-71
-60
-84
-93
-52
-52
-65
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>10
-5
-76
-88
-72
-81
-38
-37
-88
-55
-84
-</td><td>34
-</td><td>34
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission943865944.html b/src/lab/exp8/submission943865944.html
deleted file mode 100644
index d1fc50f0..00000000
--- a/src/lab/exp8/submission943865944.html
+++ /dev/null
@@ -1,383 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-#include&lt;string.h&gt;
-
-main(){
-	int N;
-	char str[1000001];
-	scanf("%s",str);
-	scanf("%d",&amp;N);
-	if(!N)
-	{
-		printf("0\n");
-		return 0;
-	}
-	int i,j;
-	char input_char[N];
-	for(i=0;i&lt; N;i++){
-		scanf(" %c",&amp;input_char[i]);
-	}
-	
-	int pos[N];
-	for(i=0;i&lt; N;i++)
-		pos[i]=-1;
-
-	int minLength = strlen(str)+1;
-
-	for(i=0;str[i];i++){
-		for(j=0;j&lt; N;j++){
-			if(input_char[j]==str[i])
-				pos[j]=i;
-		}
-		int minValue = 1000001;
-		for(j=0;j&lt; N;j++)
-			if(minValue &gt;  pos[j])
-				minValue = pos[j];
-
-		if(minValue!=-1 &amp;&amp; minLength&gt; (i-minValue+1)){
-			minLength = i-minValue+1;
-		}
-
-	}
-	if(minLength==strlen(str)+1){
-		printf("-1\n");
-	}
-	else{
-		printf("%d\n",minLength);
-	}
-	return 0;
-}
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/submission983041517.html b/src/lab/exp8/submission983041517.html
deleted file mode 100644
index 73fe30a8..00000000
--- a/src/lab/exp8/submission983041517.html
+++ /dev/null
@@ -1,336 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1>  Experiment 8 </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:red">Run Time Error </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-#include&lt;stdlib.h&gt;
-int compare(const void *a,const void *b){
-	return *((int *)a)&gt;*((int *)b);
-}
-int search(int *a,int start,int end,int num){
-	if(start&gt;end)
-		return 0;
-	int mid = (start+end)&gt;&gt;1 ;
-	if(a[mid]&gt;num)
-		return (end-mid+1)+search(a,start,mid-1,num);
-	else
-		return search(a,mid+1,end,num);
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int arr[N];
-	int i,j;
-	for(i=0;i&lt; N;i++)
-		scanf("%d",arr+i);
-	qsort(arr,N,sizeof(int),compare);
-	int ans=0;
-	for(i=0;i&lt; N;i++)
-		for(j=i+1;j&lt; N;j++)
-			ans+=search(arr,0,N-1,arr[i]+arr[j]);
-	printf("%d\n",ans);
-	return 0;
-}</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>10
-88
-61
-49
-65
-16
-57
-33
-12
-20
-16
-</td><td>69
-</td><td>34
-</td><td> Failed </td><td> Run Time Error </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/test.html b/src/lab/exp8/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp8/test.html
+++ b/src/lab/exp8/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp8/theory.html b/src/lab/exp8/theory.html
index 78182f0b..c50289e4 100755
--- a/src/lab/exp8/theory.html
+++ b/src/lab/exp8/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index 1ffcd1bc..da475c73 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 001cf1e5..783244a6 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 51fd60b6..6cc44e9c 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index bb5e364a..611ee8c6 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -2,4 +2,4 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index 51213bdd..bd1928f7 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index 9bbfee1f..0c1a827d 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index cc590df0..8628e5fd 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 529b7e4e..52512e55 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index 4ab88d07..d4942e24 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -2,5 +2,5 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index 451230a9..8a7b1a6c 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index 6471d50e..aaea1320 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index c8acea9f..03c49d4a 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 -&gt;termination 
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index d1447a27..c3816712 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -2,7 +2,7 @@
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index 1b38195c..9cc48a2f 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
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diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 8fc8a443..38141300 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
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diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 47f4a1e3..1eaf91e7 100644
--- a/src/lab/exp9/Objective.html
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@@ -29,7 +29,7 @@
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diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index c44ed7d4..799990fa 100644
--- a/src/lab/exp9/Procedure.html
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diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index 66ef13d6..dd8db980 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -60,7 +60,7 @@
 
 
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 61e20e4f..9b52c854 100644
--- a/src/lab/exp9/Theory.html
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@@ -29,7 +29,7 @@
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diff --git a/src/lab/exp9/default.html b/src/lab/exp9/default.html
index 13e6895b..270995af 100644
--- a/src/lab/exp9/default.html
+++ b/src/lab/exp9/default.html
@@ -6,7 +6,7 @@
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 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/exp9/edit_area/plugins/charmap/popup.html b/src/lab/exp9/edit_area/plugins/charmap/popup.html
index d792185e..644bcbc3 100755
--- a/src/lab/exp9/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp9/edit_area/plugins/charmap/popup.html
@@ -10,7 +10,7 @@
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 </script>
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 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp9/furtherReadings.html b/src/lab/exp9/furtherReadings.html
index 2706fedc..56c6df2e 100755
--- a/src/lab/exp9/furtherReadings.html
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@@ -9,7 +9,7 @@
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 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/lab.html b/src/lab/exp9/lab.html
index 44bd264e..b8ff63d5 100755
--- a/src/lab/exp9/lab.html
+++ b/src/lab/exp9/lab.html
@@ -202,7 +202,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/lab_test.html b/src/lab/exp9/lab_test.html
index 01b12563..039b18d6 100755
--- a/src/lab/exp9/lab_test.html
+++ b/src/lab/exp9/lab_test.html
@@ -84,7 +84,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp9/objective.html b/src/lab/exp9/objective.html
index fae6be70..533e89e8 100755
--- a/src/lab/exp9/objective.html
+++ b/src/lab/exp9/objective.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/prob_desc.html b/src/lab/exp9/prob_desc.html
index a590535e..dce75c3d 100755
--- a/src/lab/exp9/prob_desc.html
+++ b/src/lab/exp9/prob_desc.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index 77498fd9..2706fedc 100755
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/submission045226925.html b/src/lab/exp9/submission045226925.html
deleted file mode 100644
index 215d3681..00000000
--- a/src/lab/exp9/submission045226925.html
+++ /dev/null
@@ -1,341 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		
-#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 1 2 3
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>5 1 2 3 4 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 32 43 12 10 3
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>7 1 4 32 8 41 12 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
-</td><td>63
-</td><td>63
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission093704599.html b/src/lab/exp9/submission093704599.html
deleted file mode 100644
index 89dd08b7..00000000
--- a/src/lab/exp9/submission093704599.html
+++ /dev/null
@@ -1,348 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		
-#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>4
-1 2 3 3  6
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>10
-99 89 21 44 8 80 78 51 44 51 8
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>10
-84 27 10 27 61 64 90 56 30 42 90
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>10
-11 91 93 8 22 69 14 49 52 4 9
-</td><td>-1
-</td><td>-1
-</td><td> Passed </td></tr><tr><td>10
-99 100 25 67 2 66 95 13 31 40 55
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>20
-3 9 1 6 3 7 9 6 10 3 3 1 2 8 9 8 10 9 3 3 5
-</td><td>12
-</td><td>12
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission188928472.html b/src/lab/exp9/submission188928472.html
deleted file mode 100644
index a89f7ee7..00000000
--- a/src/lab/exp9/submission188928472.html
+++ /dev/null
@@ -1,320 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		
-#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission293677335.html b/src/lab/exp9/submission293677335.html
deleted file mode 100644
index cb9f0ecd..00000000
--- a/src/lab/exp9/submission293677335.html
+++ /dev/null
@@ -1,344 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 9  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission475438203.html b/src/lab/exp9/submission475438203.html
deleted file mode 100644
index e8eea1e3..00000000
--- a/src/lab/exp9/submission475438203.html
+++ /dev/null
@@ -1,347 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		
-#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission535104989.html b/src/lab/exp9/submission535104989.html
deleted file mode 100644
index cfb4c423..00000000
--- a/src/lab/exp9/submission535104989.html
+++ /dev/null
@@ -1,344 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission622055803.html b/src/lab/exp9/submission622055803.html
deleted file mode 100644
index 7eb93d34..00000000
--- a/src/lab/exp9/submission622055803.html
+++ /dev/null
@@ -1,338 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 9  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 1 2 3
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>5 1 2 3 4 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 32 43 12 10 3
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>7 1 4 32 8 41 12 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
-</td><td>63
-</td><td>63
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission857090763.html b/src/lab/exp9/submission857090763.html
deleted file mode 100644
index e8eea1e3..00000000
--- a/src/lab/exp9/submission857090763.html
+++ /dev/null
@@ -1,347 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		
-#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission906685525.html b/src/lab/exp9/submission906685525.html
deleted file mode 100644
index b7a3228f..00000000
--- a/src/lab/exp9/submission906685525.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-		#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>4
-1 2 3 3  6
-</td><td>3
-</td><td>3
-</td><td> Passed </td></tr><tr><td>10
-99 89 21 44 8 80 78 51 44 51 8
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>10
-84 27 10 27 61 64 90 56 30 42 90
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>10
-11 91 93 8 22 69 14 49 52 4 9
-</td><td>-1
-</td><td>-1
-</td><td> Passed </td></tr><tr><td>10
-99 100 25 67 2 66 95 13 31 40 55
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>20
-3 9 1 6 3 7 9 6 10 3 3 1 2 8 9 8 10 9 3 3 5
-</td><td>12
-</td><td>12
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission910376433.html b/src/lab/exp9/submission910376433.html
deleted file mode 100644
index 1b7a548a..00000000
--- a/src/lab/exp9/submission910376433.html
+++ /dev/null
@@ -1,346 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Compilation successful </p> </center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-		
-#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="probId" name="codeId">
-
-<option selected="selected" value="Problem1"> 1  </option>
-
-<option value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre>#include&lt;stdio.h&gt;
-int func(int N,int *weight,int S){
-	if(!S)// If target weight has been achieved, we have found a solution.
-		return 1;
-		
-	if(!N) // We have exhausted all the weights
-		return 0;
-		/* Case1: We consider the weight for the solution
-           Case2: We discard the weight for the solution
-           */
-	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
-}
-main(){
-	int N;
-	scanf("%d",&amp;N);
-	int weight[N],i;
-	// Weight array stores the respective weights
-	for(i=0;i&lt;N ;i++)
-		scanf("%d",weight+i);
-	int Sum;
-	scanf("%d",&amp;Sum);
-	int no_ways = func(N,weight,Sum);
-	if(!no_ways)
-		no_ways = -1;
-	printf("%d\n",no_ways);
-	return 0;
-}
-
-</pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-4
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/submission957349292.html b/src/lab/exp9/submission957349292.html
deleted file mode 100644
index b3365290..00000000
--- a/src/lab/exp9/submission957349292.html
+++ /dev/null
@@ -1,342 +0,0 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
-		<script src="jqminmax.js" type="text/javascript"></script>
-		<script src="jquery.js" type="text/javascript"></script>
-		<script src="thickbox/thickbox.js" type="text/javascript"></script>
-	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
-	<script language="Javascript" type="text/javascript">
-		// initialisation
-		editAreaLoader.init({
-			id: "editArea"	// id of the textarea to transform	
-			,start_highlight: true
-			,allow_toggle: true
-			,word_wrap: true
-			,language: "en"
-			,syntax: "c"	
-			,toolbar: "search, go_to_line, |, undo, redo, |, select_font, |, syntax_selection, |, change_smooth_selection, highlight, reset_highlight, |, help, |, save, |, load"
-			,load_callback: "my_load"
-                        ,save_callback: "my_save"
-			,syntax_selection_allow: "c,cpp"
-			,is_multi_files: false
-			,EA_load_callback: "editAreaLoaded"
-			,show_line_colors: true
-		});
-	$(document).ready(function() {
-		initThickbox();
-	
-	});
-		
-		// callback functions
-		function my_save(id, content){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			content = content.replace('#','!$!');
-			var url="save.php?content="+content; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					 window.open("upload/savedFile.txt",'Download');
-					
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-		}
-	
-		function getContent(){
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var url="upload/file.txt"; //the backend file to fetch hint from
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					editAreaLoader.setValue("editArea", xmlhttp.responseText);
-
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-	
-		}	
-		function my_load(id){
-			document.getElementById('file_upload_form').target = 'upload_target'; //'upload_target' is the name of the iframe
-			var x = document.file_upload_form.file;
-			if(x.value==""){
-				alert("Please Select a File first and then click this button again.");
-				document.getElementById("file").click();	
-				return;
-			}
-			document.file_upload_form.submit();
-			setTimeout("getContent()",1000);
-			
-			
-		}
-		
-		function test_setSelectionRange(id){
-			editAreaLoader.setSelectionRange(id, 100, 150);
-		}
-		
-		function test_getSelectionRange(id){
-			var sel =editAreaLoader.getSelectionRange(id);
-			alert("start: "+sel["start"]+"\nend: "+sel["end"]); 
-		}
-		
-		function test_setSelectedText(id){
-			text= "[REPLACED SELECTION]"; 
-			editAreaLoader.setSelectedText(id, text);
-		}
-		
-		function test_getSelectedText(id){
-			alert(editAreaLoader.getSelectedText(id)); 
-		}
-		
-		function editAreaLoaded(id){
-			if(id=="example_2")
-			{
-				open_file1();
-				open_file2();
-			}
-		}
-		
-		function open_file1()
-		{
-			var new_file= {id: "to\\ é # € to", text: "$authors= array();\n$news= array();", syntax: 'php', title: 'beautiful title'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function open_file2()
-		{
-			var new_file= {id: "Filename", text: "<a href=\"toto\">\n\tbouh\n</a>\n<!-- it's a comment -->", syntax: 'html'};
-			editAreaLoader.openFile('example_2', new_file);
-		}
-		
-		function close_file1()
-		{
-			editAreaLoader.closeFile('example_2', "to\\ é # € to");
-		}
-		
-		function toogle_editable(id)
-		{
-			editAreaLoader.execCommand(id, 'set_editable', !editAreaLoader.execCommand(id, 'is_editable'));
-		}
-
-		/* --------HINTS ---------*/
-		var hintC1 = 0;
-		var hintC2 = 0;
-		var N = 5;
-		function generateHint(selObj){
-			var hintNo = selObj.options[selObj.selectedIndex].value;
-			if(hintNo ==0){
-				return;
-			}
-			xmlhttp=new XMLHttpRequest();
-			if(xmlhttp==null)
-			{
-				alert("Your Browser does not support AJAX... Pls Update it!! ");
-				return;
-			}
-			var qObj = document.getElementById("probId");
-			var qno = qObj.options[qObj.selectedIndex].text;
-			var url="getHint.py"; //the backend file to fetch hint from
-			url = url+"?qNo="+qno+"&hintNo="+hintNo;
-			url=url+"&sid="+Math.random();
-			xmlhttp.onreadystatechange=function()
-			{
-				if(xmlhttp.readyState==4 && xmlhttp.status==200)
-				{
-					var obj = document.getElementById("hintBox");
-					obj.innerHTML = xmlhttp.responseText;
-					document.getElementById("hintCount").value = hintNo;
-					if(qno == 1 && hintC1<hintNo){
-						hintC1 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC1;
-						document.getElementById("highHint_id").value = hintC1;
-					}
-					if(qno == 2 && hintC2<hintNo){
-						hintC2 = hintNo;
-						document.getElementById("highHint").innerHTML = hintC2;
-						document.getElementById("highHint_id").value = hintC2;
-					}
-				}	
-			}
-			xmlhttp.open("GET",url,true);
-			xmlhttp.send();     
-
-
-		}
-	
-		/* ----------------------- */
-		
-	
-	</script>
-</head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
-		<header id="site_head">
-		<div class="header_cont"> <!-- 960px header-->
-			<!-- LOGO of the company-->
-			<div id="logo">
-			<h1> Experiment 10  </h1>
-			</div>
-
-		</div>
-			<!-- Menu -->
-	</header>
-	<article id="main_content"> <!--960px limit -->
-		<header id="main-title">
-			<!--h1>OJ ... Happily judging your solution</h1-->
-		</header>	
-				<div id="content">
-<div id="contentLeft">
-<span>
-<form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
-<!-- CHOOSE FILE TO LOAD: 
-<input name="file" id="file" size="20" type="file" />&nbsp;
-<input type="submit" name="action" value="Upload" style="display:none;"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span> -->
-<iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
-</form>
-</span>
-
-<!-- <p>Please insert your code here</p> -->
-
-<center> <p style="color:green">Accepted!! </p></center><form action="judge.py" method="get" name="judge">
-<fieldset>
-		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">	
-	
-	
-		
-#include&lt;stdio.h&gt;
-int N;
-int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
-
-if(index==N)
-		return weights[index_needed_achieved]==curr_sum;
-
-if(index==index_needed_achieved)
-		return no_ways(index+1,index_needed_achieved,weights,curr_sum);
-
-int a=no_ways(index+1,index_needed_achieved,weights,curr_sum+weights[index]);
-int b=no_ways(index+1,index_needed_achieved,weights,curr_sum);
-return a+b;
-
-}
-main(){
-int i;
-scanf("%d",&amp;N);
-int weights[N];
-for(i=0;i&lt; N;i++)
-	scanf("%d",weights+i);
-int ans=0;
-for(i=0;i&lt; N;i++)
-	ans+=no_ways(0,i,weights,0);
-printf("%d\n",ans);
-return 0;
-}
-	
-
-</textarea>
-	</fieldset>
-Language                              ProblemNo
-
-<br/>
-
-<select id="codeId" name="language">
-
-<option selected="selected" value="c"> C (gcc 4.3.2) </option>
-
-<option value="cpp"> C++ (g++ 4.3.2) </option>
-
-</select>                   
-    
-
-<select id="codeId" name="codeId">
-
-<option value="Problem1"> 1  </option>
-
-<option selected="selected" value="Problem2"> 2  </option>
-
-</select><a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
-<input id="highHint_id" name="highHint" type="hidden" value="0"/>
-
-
-<br/><br/><table border="1" cellpadding="15" id="tableInpOut"><tbody><tr>
-		<td> Input Data </td> 
-		<td> Expected Output </td>
-		<td> Code Output </td>
-		<td> Result </td>
-		<td> Remarks </td>
-		</tr><tr><td>3 1 2 3
-</td><td>1
-</td><td>1
-</td><td> Passed </td></tr><tr><td>5 1 2 3 4 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>5 32 43 12 10 3
-</td><td>0
-</td><td>0
-</td><td> Passed </td></tr><tr><td>7 1 4 32 8 41 12 5
-</td><td>4
-</td><td>4
-</td><td> Passed </td></tr><tr><td>10 1 3 2 54 2 2 2 2 3 7
-</td><td>63
-</td><td>63
-</td><td> Passed </td></tr></tbody></table></form></div> <!--contentLeft -->
-<div id="contentRight">
-   <h4> HINTS </h4><br/>
-   <div id="hintBox">
-
-<pre></pre>
- </div> <!--contentLeft -->
-  <!--button  type="button" id="genHint"  value="Hint" onclick="generateHint();">Generate Hint</button -->
-   <select name="hintGenerate" onchange="generateHint(this)">
-	<option value="0">Hint Level 0</option>
-	<option value="1">Hint Level 1</option>
-	<option value="2">Hint Level 2</option>
-	<option value="3">Hint Level 3</option>
-	<option value="4">Hint Level 4</option>
-   </select>
-   <span>Highest Level Hint used: <span id="highHint">
-
-0
- </span></span>
-   
-   
-</div> <!--contentRight -->
-
-				</div>
-			</article>
-			<div id="footer">
-	<!--		  Developed By  --> 
-			</div>
-		
-			
-
-	
-
-
-
-</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/test.html b/src/lab/exp9/test.html
index 00de5c30..ff26f1e9 100755
--- a/src/lab/exp9/test.html
+++ b/src/lab/exp9/test.html
@@ -121,7 +121,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
diff --git a/src/lab/exp9/theory.html b/src/lab/exp9/theory.html
index 07ba6d91..2f48809f 100755
--- a/src/lab/exp9/theory.html
+++ b/src/lab/exp9/theory.html
@@ -9,7 +9,7 @@
 		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/expPh1/default.html b/src/lab/expPh1/default.html
index 4f12d365..3aadd68d 100644
--- a/src/lab/expPh1/default.html
+++ b/src/lab/expPh1/default.html
@@ -6,7 +6,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
diff --git a/src/lab/expPh1/newcontenttempalte.html b/src/lab/expPh1/newcontenttempalte.html
index 9ad92d99..1e74b7b5 100755
--- a/src/lab/expPh1/newcontenttempalte.html
+++ b/src/lab/expPh1/newcontenttempalte.html
@@ -8,7 +8,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;gt;&amp;amp;lt;/iframe&amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> 
 
diff --git a/src/lab/faq.html b/src/lab/faq.html
index 7385bbea..1336ac9b 100755
--- a/src/lab/faq.html
+++ b/src/lab/faq.html
@@ -28,7 +28,7 @@
    
 	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
   <div id="top">
     	<header>
 	<!-- Navigation -->
diff --git a/src/lab/index.html b/src/lab/index.html
index 0837bea7..610178c4 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -29,7 +29,7 @@
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
diff --git a/src/themes/green-icon/search-result.html b/src/themes/green-icon/search-result.html
index 9f519064..703a679d 100755
--- a/src/themes/green-icon/search-result.html
+++ b/src/themes/green-icon/search-result.html
@@ -27,7 +27,7 @@
     <link href="css/style.css" rel="stylesheet"/>
 	<script src="tabs.js" type="text/javascript"></script>
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->

From 8b45cd8aa64320237fa21f8b35f33446c68a06a9 Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Fri, 3 Jul 2020 09:09:07 +0530
Subject: [PATCH 07/22] changelog

---
 README.txt    |  1 -
 changelog.org | 21 +++++++++++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100644 changelog.org

diff --git a/README.txt b/README.txt
index 94344d75..719ef144 100644
--- a/README.txt
+++ b/README.txt
@@ -99,4 +99,3 @@ Go to Command Terminal
 	 $ make theme=blue-icon
 
 * Now, open ui/build/index.html in the browser to test the template.
-
diff --git a/changelog.org b/changelog.org
new file mode 100644
index 00000000..19c74cb2
--- /dev/null
+++ b/changelog.org
@@ -0,0 +1,21 @@
+#+NAME: Changelog
+
+* <2020-07-03 Fri>
+
+  - Author :: Ojas Mohril
+  - Changes ::
+    - Updated makefile =patch-analytics= command to use
+      =scripts/patch-analytics.sh= instead of the script
+      from [[https://github.com/virtual-labs/vlabs-analytics][vlabs-analytics]].
+    - This script is taken from the [[https://github.com/virtual-labs/vlabs-analytics][vlabs-analytics]] repo but updated
+      to ignore =content*.html= files.  Justification for why this is
+      needed can be found in [[https://github.com/virtual-labs/problem-solving-iiith/issues/1213][this]] issue.  (In brief, content*.html
+      files are not really html and break when touched by the
+      analytics code.)
+    - As a result of this change, the submission files will no longer
+      have analytics snippet and these page views will not be tracked.
+    - Removed all committed submission*.html files and added the
+      pattern to gitignore.  These are radomly generated files and
+      should not be added to version control.
+    - As the broken content files were comitted at some point on the
+      master, the working files had to extracted from [[https://github.com/virtual-labs/problem-solving-iiith/commit/591c7f3c91d260a9a0ef12385c62be3b63577e44][this]] commit.

From 0ac357c530a81454702d6b1467270770f6597843 Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Fri, 3 Jul 2020 14:36:41 +0530
Subject: [PATCH 08/22] remove analytics from src

---
 src/lab/Courses Aligned.html                  |  41 +++--
 src/lab/Feedback.html                         |  39 ++---
 src/lab/Introduction.html                     |  41 +++--
 src/lab/List of experiments.html              |  39 ++---
 src/lab/Prerequisites.html                    |  41 +++--
 src/lab/Target Audience.html                  |  41 +++--
 src/lab/default.html                          |  15 +-
 src/lab/exp1/Experiment.html                  |  39 ++---
 src/lab/exp1/Feedback.html                    |  39 ++---
 src/lab/exp1/Further Readings.html            |  39 ++---
 src/lab/exp1/Hints1/Hint_0.html               |   6 +-
 src/lab/exp1/Hints1/Hint_1.html               |   6 +-
 src/lab/exp1/Hints1/Hint_2.html               |   6 +-
 src/lab/exp1/Hints1/Hint_3.html               |   6 +-
 src/lab/exp1/Hints1/Hint_4.html               |   6 +-
 src/lab/exp1/Hints2/Hint_0.html               |   6 +-
 src/lab/exp1/Hints2/Hint_1.html               |   6 +-
 src/lab/exp1/Hints2/Hint_2.html               |   6 +-
 src/lab/exp1/Hints2/Hint_3.html               |   6 +-
 src/lab/exp1/Hints2/Hint_4.html               |   6 +-
 src/lab/exp1/Introduction.html                |  87 +++++-----
 src/lab/exp1/Manual.html                      |  39 ++---
 src/lab/exp1/Objective.html                   |  39 ++---
 src/lab/exp1/Procedure.html                   |  39 ++---
 src/lab/exp1/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp1/Theory.html                      |  75 ++++-----
 src/lab/exp1/Untitled-1.html                  |  24 +--
 src/lab/exp1/bk_lab.html                      |  43 +++--
 src/lab/exp1/bkcontent.html                   |  85 +++++-----
 src/lab/exp1/bkindex.html                     |  55 +++----
 src/lab/exp1/default.html                     |  95 ++++++-----
 .../exp1/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp1/furtherReadings.html             |  59 ++++---
 src/lab/exp1/indexmar.html                    |  19 +--
 src/lab/exp1/lab.html                         |  49 +++---
 src/lab/exp1/lab_test.html                    |  33 ++--
 src/lab/exp1/newindex.html                    |  17 +-
 src/lab/exp1/objective.html                   |  13 +-
 src/lab/exp1/previndex.html                   |  55 +++----
 src/lab/exp1/prevlab.html                     |  43 +++--
 src/lab/exp1/prob_desc.html                   |  61 ++++---
 src/lab/exp1/quiz.html                        |  59 ++++---
 src/lab/exp1/realcontent.html                 |  87 +++++-----
 src/lab/exp1/test.html                        |  33 ++--
 src/lab/exp1/theory.html                      |  17 +-
 src/lab/exp10/Experiment.html                 |  39 ++---
 src/lab/exp10/Feedback.html                   |  39 ++---
 src/lab/exp10/Further Readings.html           |  39 ++---
 src/lab/exp10/Hints1/Hint_0.html              |   6 +-
 src/lab/exp10/Hints1/Hint_1.html              |   6 +-
 src/lab/exp10/Hints1/Hint_2.html              |   6 +-
 src/lab/exp10/Hints1/Hint_3.html              |   6 +-
 src/lab/exp10/Hints1/Hint_4.html              |   6 +-
 src/lab/exp10/Hints2/Hint_0.html              |   6 +-
 src/lab/exp10/Hints2/Hint_1.html              |   6 +-
 src/lab/exp10/Hints2/Hint_2.html              |   6 +-
 src/lab/exp10/Hints2/Hint_3.html              |   6 +-
 src/lab/exp10/Hints2/Hint_4.html              |   6 +-
 src/lab/exp10/Introduction.html               |  97 ++++++-----
 src/lab/exp10/Manual.html                     |  39 ++---
 src/lab/exp10/Objective.html                  |  39 ++---
 src/lab/exp10/Procedure.html                  |  39 ++---
 src/lab/exp10/Quizzes.html                    | 141 ++++++++--------
 src/lab/exp10/Theory.html                     |  47 +++---
 src/lab/exp10/default.html                    |  95 ++++++-----
 .../edit_area/plugins/charmap/popup.html      |  13 +-
 src/lab/exp10/furtherReadings.html            |  59 ++++---
 src/lab/exp10/lab.html                        |  47 +++---
 src/lab/exp10/lab_test.html                   |  33 ++--
 src/lab/exp10/objective.html                  |  13 +-
 src/lab/exp10/prob_desc.html                  |  61 ++++---
 src/lab/exp10/quiz.html                       |  59 ++++---
 src/lab/exp10/test.html                       |  33 ++--
 src/lab/exp10/theory.html                     |  13 +-
 src/lab/exp2/Experiment.html                  |  39 ++---
 src/lab/exp2/Feedback.html                    |  39 ++---
 src/lab/exp2/Further Readings.html            |  39 ++---
 src/lab/exp2/Hints1/Hint_0.html               |   6 +-
 src/lab/exp2/Hints1/Hint_1.html               |   6 +-
 src/lab/exp2/Hints1/Hint_2.html               |   6 +-
 src/lab/exp2/Hints1/Hint_3.html               |   6 +-
 src/lab/exp2/Hints1/Hint_4.html               |   6 +-
 src/lab/exp2/Hints1/Hint_5.html               |   6 +-
 src/lab/exp2/Hints2/Hint_0.html               |   6 +-
 src/lab/exp2/Hints2/Hint_1.html               |   6 +-
 src/lab/exp2/Hints2/Hint_2.html               |   6 +-
 src/lab/exp2/Hints2/Hint_3.html               |   6 +-
 src/lab/exp2/Hints2/Hint_4.html               |   6 +-
 src/lab/exp2/Hints2/Hint_5.html               |   6 +-
 src/lab/exp2/Introduction.html                |  91 +++++------
 src/lab/exp2/Manual.html                      |  39 ++---
 src/lab/exp2/Objective.html                   |  39 ++---
 src/lab/exp2/Procedure.html                   |  39 ++---
 src/lab/exp2/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp2/Theory.html                      |  69 ++++----
 src/lab/exp2/bk_index.html                    |  55 +++----
 src/lab/exp2/default.html                     |  95 ++++++-----
 .../exp2/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp2/furtherReadings.html             |  59 ++++---
 src/lab/exp2/lab.html                         |  49 +++---
 src/lab/exp2/lab_test.html                    |  33 ++--
 src/lab/exp2/objective.html                   |  13 +-
 src/lab/exp2/previndex.html                   |  55 +++----
 src/lab/exp2/prob_desc.html                   |  55 +++----
 src/lab/exp2/quiz.html                        |  59 ++++---
 src/lab/exp2/test.html                        |  33 ++--
 src/lab/exp2/theory.html                      |  13 +-
 src/lab/exp3/Experiment.html                  |  39 ++---
 src/lab/exp3/Feedback.html                    |  39 ++---
 src/lab/exp3/Further Readings.html            |  39 ++---
 src/lab/exp3/Hints1/Hint_0.html               |   6 +-
 src/lab/exp3/Hints1/Hint_1.html               |   6 +-
 src/lab/exp3/Hints1/Hint_2.html               |   6 +-
 src/lab/exp3/Hints1/Hint_3.html               |   6 +-
 src/lab/exp3/Hints1/Hint_4.html               |   6 +-
 src/lab/exp3/Hints2/Hint_0.html               |   6 +-
 src/lab/exp3/Hints2/Hint_1.html               |   6 +-
 src/lab/exp3/Hints2/Hint_2.html               |   6 +-
 src/lab/exp3/Hints2/Hint_3.html               |   6 +-
 src/lab/exp3/Hints2/Hint_4.html               |   6 +-
 src/lab/exp3/Hints2/Hint_5.html               |   6 +-
 src/lab/exp3/Introduction.html                | 101 ++++++------
 src/lab/exp3/Manual.html                      |  39 ++---
 src/lab/exp3/Objective.html                   |  39 ++---
 src/lab/exp3/Procedure.html                   |  39 ++---
 src/lab/exp3/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp3/Theory.html                      | 143 ++++++++---------
 src/lab/exp3/default.html                     |  95 ++++++-----
 .../exp3/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp3/furtherReadings.html             |  59 ++++---
 src/lab/exp3/lab.html                         |  49 +++---
 src/lab/exp3/lab_test.html                    |  33 ++--
 src/lab/exp3/objective.html                   |  13 +-
 src/lab/exp3/prob_desc.html                   |  55 +++----
 src/lab/exp3/quiz.html                        |  59 ++++---
 src/lab/exp3/test.html                        |  33 ++--
 src/lab/exp3/theory.html                      |  15 +-
 src/lab/exp4/Experiment.html                  |  39 ++---
 src/lab/exp4/Feedback.html                    |  39 ++---
 src/lab/exp4/Further Readings.html            |  39 ++---
 src/lab/exp4/Hints1/Hint_1.html               |   6 +-
 src/lab/exp4/Hints1/Hint_2.html               |   6 +-
 src/lab/exp4/Hints1/Hint_3.html               |   6 +-
 src/lab/exp4/Hints1/Hint_4.html               |   6 +-
 src/lab/exp4/Hints2/Hint_0.html               |   6 +-
 src/lab/exp4/Hints2/Hint_1.html               |   6 +-
 src/lab/exp4/Hints2/Hint_2.html               |   6 +-
 src/lab/exp4/Hints2/Hint_3.html               |   6 +-
 src/lab/exp4/Hints2/Hint_4.html               |   6 +-
 src/lab/exp4/Introduction.html                |  93 +++++------
 src/lab/exp4/Manual.html                      |  39 ++---
 src/lab/exp4/Objective.html                   |  39 ++---
 src/lab/exp4/Procedure.html                   |  39 ++---
 src/lab/exp4/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp4/Theory.html                      | 151 +++++++++---------
 src/lab/exp4/default.html                     |  95 ++++++-----
 .../exp4/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp4/furtherReadings.html             |  59 ++++---
 src/lab/exp4/lab.html                         |  49 +++---
 src/lab/exp4/lab_test.html                    |  33 ++--
 src/lab/exp4/objective.html                   |  13 +-
 src/lab/exp4/prob_desc.html                   |  55 +++----
 src/lab/exp4/quiz.html                        |  59 ++++---
 src/lab/exp4/test.html                        |  33 ++--
 src/lab/exp4/theory.html                      |  13 +-
 src/lab/exp5/Experiment.html                  |  39 ++---
 src/lab/exp5/Feedback.html                    |  39 ++---
 src/lab/exp5/Further Readings.html            |  39 ++---
 src/lab/exp5/Hints1/Hint_0.html               |   6 +-
 src/lab/exp5/Hints1/Hint_1.html               |   6 +-
 src/lab/exp5/Hints1/Hint_2.html               |   6 +-
 src/lab/exp5/Hints1/Hint_3.html               |   6 +-
 src/lab/exp5/Hints1/Hint_4.html               |   6 +-
 src/lab/exp5/Hints2/Hint_0.html               |   6 +-
 src/lab/exp5/Hints2/Hint_1.html               |   6 +-
 src/lab/exp5/Hints2/Hint_2.html               |   6 +-
 src/lab/exp5/Hints2/Hint_3.html               |   6 +-
 src/lab/exp5/Hints2/Hint_4.html               |   6 +-
 src/lab/exp5/Introduction.html                |  91 +++++------
 src/lab/exp5/Manual.html                      |  39 ++---
 src/lab/exp5/Objective.html                   |  39 ++---
 src/lab/exp5/Procedure.html                   |  39 ++---
 src/lab/exp5/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp5/Theory.html                      |  73 ++++-----
 src/lab/exp5/default.html                     |  95 ++++++-----
 .../exp5/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp5/furtherReadings.html             |  59 ++++---
 src/lab/exp5/lab.html                         |  49 +++---
 src/lab/exp5/lab_test.html                    |  33 ++--
 src/lab/exp5/objective.html                   |  13 +-
 src/lab/exp5/prob_desc.html                   |  55 +++----
 src/lab/exp5/quiz.html                        |  59 ++++---
 src/lab/exp5/test.html                        |  33 ++--
 src/lab/exp5/theory.html                      |  15 +-
 src/lab/exp6/Experiment.html                  |  39 ++---
 src/lab/exp6/Feedback.html                    |  39 ++---
 src/lab/exp6/Further Readings.html            |  39 ++---
 src/lab/exp6/Hints1/Hint_0.html               |   6 +-
 src/lab/exp6/Hints1/Hint_1.html               |   6 +-
 src/lab/exp6/Hints1/Hint_2.html               |   6 +-
 src/lab/exp6/Hints1/Hint_3.html               |   6 +-
 src/lab/exp6/Hints1/Hint_4.html               |   6 +-
 src/lab/exp6/Hints1/Hint_5.html               |   6 +-
 src/lab/exp6/Hints2/Hint_0.html               |   6 +-
 src/lab/exp6/Hints2/Hint_1.html               |   6 +-
 src/lab/exp6/Hints2/Hint_2.html               |   6 +-
 src/lab/exp6/Hints2/Hint_3.html               |   6 +-
 src/lab/exp6/Hints2/Hint_4.html               |   6 +-
 src/lab/exp6/Hints2/Hint_5.html               |   6 +-
 src/lab/exp6/Introduction.html                |  91 +++++------
 src/lab/exp6/Manual.html                      |  39 ++---
 src/lab/exp6/Objective.html                   |  39 ++---
 src/lab/exp6/Procedure.html                   |  39 ++---
 src/lab/exp6/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp6/Theory.html                      |  73 ++++-----
 src/lab/exp6/default.html                     |  95 ++++++-----
 .../exp6/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp6/furtherReadings.html             |  59 ++++---
 src/lab/exp6/lab.html                         |  47 +++---
 src/lab/exp6/lab_test.html                    |  33 ++--
 src/lab/exp6/objective.html                   |  13 +-
 src/lab/exp6/prob_desc.html                   |  55 +++----
 src/lab/exp6/quiz.html                        |  59 ++++---
 src/lab/exp6/test.html                        |  33 ++--
 src/lab/exp6/theory.html                      |  15 +-
 src/lab/exp7/Experiment.html                  |  39 ++---
 src/lab/exp7/Feedback.html                    |  39 ++---
 src/lab/exp7/Further Readings.html            |  39 ++---
 src/lab/exp7/Hints1/Hint_0.html               |   6 +-
 src/lab/exp7/Hints1/Hint_1.html               |   6 +-
 src/lab/exp7/Hints1/Hint_2.html               |   6 +-
 src/lab/exp7/Hints1/Hint_3.html               |   6 +-
 src/lab/exp7/Hints1/Hint_4.html               |   6 +-
 src/lab/exp7/Hints2/Hint_0.html               |   6 +-
 src/lab/exp7/Hints2/Hint_1.html               |   6 +-
 src/lab/exp7/Hints2/Hint_2.html               |   6 +-
 src/lab/exp7/Hints2/Hint_3.html               |   6 +-
 src/lab/exp7/Hints2/Hint_4.html               |   6 +-
 src/lab/exp7/Introduction.html                |  89 +++++------
 src/lab/exp7/Manual.html                      |  39 ++---
 src/lab/exp7/Objective.html                   |  39 ++---
 src/lab/exp7/Procedure.html                   |  39 ++---
 src/lab/exp7/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp7/Theory.html                      |  53 +++---
 src/lab/exp7/default.html                     |  95 ++++++-----
 .../exp7/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp7/furtherReadings.html             |  59 ++++---
 src/lab/exp7/lab.html                         |  47 +++---
 src/lab/exp7/lab_test.html                    |  33 ++--
 src/lab/exp7/objective.html                   |  13 +-
 src/lab/exp7/prob_desc.html                   |  55 +++----
 src/lab/exp7/quiz.html                        |  59 ++++---
 src/lab/exp7/test.html                        |  33 ++--
 src/lab/exp7/theory.html                      |  13 +-
 src/lab/exp8/Experiment.html                  |  39 ++---
 src/lab/exp8/Feedback.html                    |  39 ++---
 src/lab/exp8/Further Readings.html            |  39 ++---
 src/lab/exp8/Hints1/Hint_0.html               |   6 +-
 src/lab/exp8/Hints1/Hint_1.html               |   6 +-
 src/lab/exp8/Hints1/Hint_2.html               |   6 +-
 src/lab/exp8/Hints1/Hint_3.html               |   6 +-
 src/lab/exp8/Hints1/Hint_4.html               |   6 +-
 src/lab/exp8/Hints2/Hint_0.html               |   6 +-
 src/lab/exp8/Hints2/Hint_1.html               |   6 +-
 src/lab/exp8/Hints2/Hint_2.html               |   6 +-
 src/lab/exp8/Hints2/Hint_3.html               |   6 +-
 src/lab/exp8/Hints2/Hint_4.html               |   6 +-
 src/lab/exp8/Introduction.html                |  87 +++++-----
 src/lab/exp8/Manual.html                      |  39 ++---
 src/lab/exp8/Objective.html                   |  39 ++---
 src/lab/exp8/Procedure.html                   |  39 ++---
 src/lab/exp8/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp8/Theory.html                      |  43 +++--
 src/lab/exp8/default.html                     |  95 ++++++-----
 .../exp8/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp8/furtherReadings.html             |  59 ++++---
 src/lab/exp8/lab.html                         |  47 +++---
 src/lab/exp8/lab_test.html                    |  33 ++--
 src/lab/exp8/objective.html                   |  13 +-
 src/lab/exp8/prob_desc.html                   |  53 +++---
 src/lab/exp8/quiz.html                        |  59 ++++---
 src/lab/exp8/test.html                        |  33 ++--
 src/lab/exp8/theory.html                      |  13 +-
 src/lab/exp9/Experiment.html                  |  39 ++---
 src/lab/exp9/Feedback.html                    |  39 ++---
 src/lab/exp9/Further Readings.html            |  39 ++---
 src/lab/exp9/Hints1/Hint_0.html               |   6 +-
 src/lab/exp9/Hints1/Hint_1.html               |   6 +-
 src/lab/exp9/Hints1/Hint_2.html               |   6 +-
 src/lab/exp9/Hints1/Hint_3.html               |   6 +-
 src/lab/exp9/Hints1/Hint_4.html               |   6 +-
 src/lab/exp9/Hints2/Hint_0.html               |   6 +-
 src/lab/exp9/Hints2/Hint_1.html               |   6 +-
 src/lab/exp9/Hints2/Hint_2.html               |   6 +-
 src/lab/exp9/Hints2/Hint_3.html               |   6 +-
 src/lab/exp9/Hints2/Hint_4.html               |   6 +-
 src/lab/exp9/Introduction.html                |  89 +++++------
 src/lab/exp9/Manual.html                      |  39 ++---
 src/lab/exp9/Objective.html                   |  39 ++---
 src/lab/exp9/Procedure.html                   |  39 ++---
 src/lab/exp9/Quizzes.html                     | 141 ++++++++--------
 src/lab/exp9/Theory.html                      |  59 ++++---
 src/lab/exp9/default.html                     |  95 ++++++-----
 .../exp9/edit_area/plugins/charmap/popup.html |  13 +-
 src/lab/exp9/furtherReadings.html             |  59 ++++---
 src/lab/exp9/lab.html                         |  47 +++---
 src/lab/exp9/lab_test.html                    |  33 ++--
 src/lab/exp9/objective.html                   |  13 +-
 src/lab/exp9/prob_desc.html                   |  61 ++++---
 src/lab/exp9/quiz.html                        |  59 ++++---
 src/lab/exp9/test.html                        |  33 ++--
 src/lab/exp9/theory.html                      |  13 +-
 src/lab/expPh1/default.html                   |  95 ++++++-----
 src/lab/expPh1/newcontenttempalte.html        |  79 +++++----
 src/lab/faq.html                              |  89 +++++------
 src/lab/index.html                            |  39 ++---
 src/themes/green-icon/search-result.html      |  47 +++---
 317 files changed, 4985 insertions(+), 6471 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 8603b967..6b86c281 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="images/favicon.ico" rel="shortcut icon"/>
+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -102,7 +97,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/><p> The present lab is aligned with courses such as Introduction to Data Structures, Data Structures in C/C++, and the like. The experiments touch on most topics covered in such courses in most curricula. </p>
+<br><p> The present lab is aligned with courses such as Introduction to Data Structures, Data Structures in C/C++, and the like. The experiments touch on most topics covered in such courses in most curricula. </p>
 </div>						</div>
 					</div>
 			</div>
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 7fa13342..8f967435 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 4ca09fce..211ad668 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="images/favicon.ico" rel="shortcut icon"/>
+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -102,7 +97,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/>
+<br>
 <p>
 		Welcome to the Problem Solving Virtual Lab developed at IIIT Hyderabad. The interactive experiments in this lab will give the students an opportunity for learning and better understanding of using computer programming as a tool to solve basic to advanced problems.
 	  </p>
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 6203b8d1..be506710 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="images/favicon.ico" rel="shortcut icon"/>
+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
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 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -102,7 +97,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/>
+<br>
 <ul id="list-of-experiments">
 <li>
 <!--Link and name of the experiment 1 -->
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index 01b25c9e..329eabd7 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -102,7 +97,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/>
+<br>
 <p>
 </p><ul>
 <li>Java Runtime Environment allows you to play online virtual labs.</li>
diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index 579e783b..e41d2c38 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="images/favicon.ico" rel="shortcut icon"/>
+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -102,7 +97,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
+<br><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
 	  </p>
 </div>						</div>
 					</div>
diff --git a/src/lab/default.html b/src/lab/default.html
index 7e856119..fc64f807 100644
--- a/src/lab/default.html
+++ b/src/lab/default.html
@@ -1,13 +1,8 @@
-<!--This file has got the default structure of the html pages--><!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--This file has got the default structure of the html pages--><!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
   <title> UI Manual</title>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="lab"> <!-- The Lab Document Container-->
   
@@ -19,7 +14,7 @@
     <div class="logo" id="lab-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="images/logo.jpg"/>
+      <img src="images/logo.jpg">
     </div>
 
     <div class="heading" id="lab-header-heading">
@@ -78,7 +73,7 @@
       <section id="lab-article-section-1">
         <div class="icon" id="lab-article-section-1-icon">
           <!-- Enclose the icon image for the section. -->
-	  <img src="images/introduction.jpg"/>
+	  <img src="images/introduction.jpg">
 	</div>
 
 
@@ -107,7 +102,7 @@
         
         <div class="icon" id="lab-article-section-2-icon">
           <!-- Enclose the icon image for the section. -->
-	  <img src="images/simulation.jpg"/>
+	  <img src="images/simulation.jpg">
 	</div>
 
 
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 8b175001..2c753cbd 100644
--- a/src/lab/exp1/Experiment.html
+++ b/src/lab/exp1/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index 71155745..a57e1e98 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -85,14 +80,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index ec18ab6c..cd115a64 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
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 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Hints1/Hint_0.html b/src/lab/exp1/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp1/Hints1/Hint_0.html
+++ b/src/lab/exp1/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_1.html b/src/lab/exp1/Hints1/Hint_1.html
index cb9dfa9c..4e99e5e8 100755
--- a/src/lab/exp1/Hints1/Hint_1.html
+++ b/src/lab/exp1/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index 779c0338..37e64644 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 4442d589..1d30ff42 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
+++ b/src/lab/exp1/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index 5acafb7f..aee22894 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
+++ b/src/lab/exp1/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 2597bf6d..16de6760 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index 3d0e7679..ebf2fd0a 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index 83b21dc9..e3e7c7fb 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index e12cb5d7..8af1c4a2 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 int N;
 	scanf("%d",&amp;N);
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 956e0632..6cf5caee 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;gt;&amp;lt;/iframe&amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,61 +96,61 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
-<br/>
+<br>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br/><r>
- <p><b>Input Specification</b></p><br/>
+<br><r>
+ <p><b>Input Specification</b></p><br>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 4<br/>
-Output:3<br/>
-Input: 16 <br/>
-Output: 5<br/>
+Input: 4<br>
+Output:3<br>
+Input: 16 <br>
+Output: 5<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
+<br><hr>
 
 <h2>Problem 2:</h2>
 <p> 
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 3 A B C AC <br/>
-Output: 4<br/>
-Input: 3 A B C BC<br/>
-Output: 6<br/>
+Input: 3 A B C AC <br>
+Output: 4<br>
+Input: 3 A B C BC<br>
+Output: 6<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/>  </r></div>						</div>
+<br><hr>
+<br><br>  </r></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index 2f92e660..b4150169 100644
--- a/src/lab/exp1/Manual.html
+++ b/src/lab/exp1/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 5cf63573..83622cbc 100644
--- a/src/lab/exp1/Objective.html
+++ b/src/lab/exp1/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -82,14 +77,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index 082931ea..0fd6f95a 100644
--- a/src/lab/exp1/Procedure.html
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quizzes.html
index 2a8b53a1..286b179c 100644
--- a/src/lab/exp1/Quizzes.html
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@@ -1,31 +1,26 @@
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
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-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
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-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content"
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index b5e95e62..88858737 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,40 +96,40 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
 etc.
-<br/><br/>
+<br><br>
 
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
-<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
+<br>
 </p>
 
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 Lets start with an example. Consider the sample input, the given characters are A,B,C and the input string is AC. Assume we are traversing the input string from left to right, say initially we are at 0<sup>th</sup> position. If instead of 'A' suppose B was present, then all the strings which would start with A would come first than B, right?
 Thus, the number of strings which come before BC would No_strings which start with A + No_strings which start with B before BC. But luckily we have initial letter as A. Now the 1<sup>st</sup> character is 'C' , thus we need to count all the strings which start with AB. If instead of 'C' there was a D, then we would have to count the number of strings starting with AB, AC. In this manner we proceed adding the requisite number of strings to our result.
 </p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp1/Untitled-1.html b/src/lab/exp1/Untitled-1.html
index 96038096..6f99e4c5 100644
--- a/src/lab/exp1/Untitled-1.html
+++ b/src/lab/exp1/Untitled-1.html
@@ -1,20 +1,13 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager-->
   <!--Google Tag Manager-->
-  <script class="gtm">
-   (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');
-  </script>
+  
   <!--End Google Tag Manager-->
-  <meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+  <meta content="text/html; charset=utf-8" http-equiv="Content-Type">
   <title>
    EditArea - the code editor in a textarea
   </title>
-  <link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-  <link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+  <link href="default.css" media="screen" rel="stylesheet" type="text/css">
+  <link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
   <script src="jqminmax.js" type="text/javascript">
   </script>
   <script src="jquery.js" type="text/javascript">
@@ -199,12 +192,9 @@
 		/* ----------------------- */
   </script>
  </head>
- <body>
+ <body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
   <!--Google Tag Manager (noscript)-->
-  <noscript class="gtm">
-   &amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;amp;amp;amp;amp;amp;gt;
-   &amp;amp;amp;amp;amp;amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;amp;amp;amp;amp;amp;gt;
-  </noscript>
+  
   <!--End Google Tag Manager (noscript)-->
   <header id="site_head">
    <div class="header_cont">
diff --git a/src/lab/exp1/bk_lab.html b/src/lab/exp1/bk_lab.html
index f431dfde..3728993f 100755
--- a/src/lab/exp1/bk_lab.html
+++ b/src/lab/exp1/bk_lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -190,7 +185,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -223,8 +218,8 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
@@ -235,31 +230,31 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp1/bkcontent.html b/src/lab/exp1/bkcontent.html
index 2cea91dc..2f12de50 100755
--- a/src/lab/exp1/bkcontent.html
+++ b/src/lab/exp1/bkcontent.html
@@ -1,10 +1,5 @@
-<!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Experiment 1
 </h1>
 
@@ -18,24 +13,24 @@ <h2>Introduction </h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number.
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr>
+<b>Input Specification</b><br>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr>
+<b>Output Specification</b><br>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 4<br/>
-Output:3<br/>
-Input: 16 <br/>
-Output: 5<br/>
-<br/><hr/>
-<br/>
+<br><hr>
+<b>Sample Input and Output</b><br>
+Input: 4<br>
+Output:3<br>
+Input: 16 <br>
+Output: 5<br>
+<br><hr>
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
@@ -43,23 +38,23 @@ <h2>Introduction </h2>
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words (sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr>
+<b>Input Specification</b><br>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr>						
+<b>Output Specification</b><br>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 3 A B C AC <br/>
-Output: 4<br/>
-Input: 3 A B C BC<br/>
-Output: 6<br/>
-<br/><hr/>
+<br><hr>
+<b>Sample Input and Output</b><br>
+Input: 3 A B C AC <br>
+Output: 4<br>
+Input: 3 A B C BC<br>
+Output: 6<br>
+<br><hr>
 </li>
 </ol></div> 
 
@@ -67,29 +62,29 @@ <h2>Introduction </h2>
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
-etc.<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
+etc.<br>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
 </p>       
 
-<br/>
+<br>
 
 <h3>Problem 2</h3>
 <p>
diff --git a/src/lab/exp1/bkindex.html b/src/lab/exp1/bkindex.html
index f34e6eff..4a28569d 100755
--- a/src/lab/exp1/bkindex.html
+++ b/src/lab/exp1/bkindex.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 <!--		<script src="jqminmax.js" type="text/javascript"></script> -->
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -46,17 +41,17 @@ <h2>Introduction </h2>
 			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
 binary number
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 4<br/>
-						Output:3<br/>
-						Input: 16 <br/>
-						Output: 5<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^6) <br><br><hr>
+						<center><b>Output Specification</b></center><br>
+		Output the minimum number of bits required for the representing in binary <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 4<br>
+						Output:3<br>
+						Input: 16 <br>
+						Output: 5<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -68,18 +63,18 @@ <h2>Introduction </h2>
 		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
 				every word in the dictionary!!)
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br><br><hr>
+						<center><b>Output Specification</b></center><br>
 			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 3 A B C AC <br>
+						Output: 4<br>
+						Input: 3 A B C BC<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp1/default.html b/src/lab/exp1/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp1/default.html
+++ b/src/lab/exp1/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp1/edit_area/plugins/charmap/popup.html b/src/lab/exp1/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp1/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp1/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp1/furtherReadings.html b/src/lab/exp1/furtherReadings.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp1/furtherReadings.html
+++ b/src/lab/exp1/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp1/indexmar.html b/src/lab/exp1/indexmar.html
index 7837890a..cbf4c284 100755
--- a/src/lab/exp1/indexmar.html
+++ b/src/lab/exp1/indexmar.html
@@ -1,17 +1,12 @@
-<!DOCTYPE html>
-<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
+<!DOCTYPE html><html lang="eng"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type">
 	<title> Virtual Labs | Experiments </title>
 
-	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css">
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css">
 	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/> 
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css"> 
 
 	<script src="../colorjs/prettify.js" type="text/javascript"></script> 
 	<script type="text/javascript">
@@ -45,7 +40,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
         <header id="site_head">
                 <div class="header_cont"> <!-- 960px header-->
                         <!-- LOGO of the company-->
diff --git a/src/lab/exp1/lab.html b/src/lab/exp1/lab.html
index 4ea0d877..92ba4e0d 100755
--- a/src/lab/exp1/lab.html
+++ b/src/lab/exp1/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -203,7 +198,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -223,46 +218,46 @@ <h1>  Numerical Representation </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload">
+<br>
 
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
  
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp1/lab_test.html b/src/lab/exp1/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp1/lab_test.html
+++ b/src/lab/exp1/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp1/newindex.html b/src/lab/exp1/newindex.html
index 25c5b0ea..4e9b7cd0 100755
--- a/src/lab/exp1/newindex.html
+++ b/src/lab/exp1/newindex.html
@@ -1,16 +1,11 @@
-<!DOCTYPE html>
-<html lang="eng"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html;charset=utf-8" http-eqiv="content-Type"/>
+<!DOCTYPE html><html lang="eng"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html;charset=utf-8" http-eqiv="content-Type">
 	<title> Virtual Labs | Programming Lab 2 </title>
 
-	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="../css/common.css" media="screen" rel="stylesheet" type="text/css">
+	<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css">
 	<script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	<link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	<link href="../css/prettify.css" rel="stylesheet" type="text/css">
 	<script src="../colorjs/prettify.js" type="text/javascript"></script>
 	<script type="text/javascript">
 		$(document).ready(function() 
@@ -43,7 +38,7 @@
     </script>
 </head>
 
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 	<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/objective.html b/src/lab/exp1/objective.html
index fae6be70..87c8513c 100755
--- a/src/lab/exp1/objective.html
+++ b/src/lab/exp1/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp1/previndex.html b/src/lab/exp1/previndex.html
index 3d4874ab..69f4c87d 100755
--- a/src/lab/exp1/previndex.html
+++ b/src/lab/exp1/previndex.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -46,17 +41,17 @@ <h2>Introduction </h2>
 			Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as
 binary number
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-		Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 4<br/>
-						Output:3<br/>
-						Input: 16 <br/>
-						Output: 5<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^6) <br><br><hr>
+						<center><b>Output Specification</b></center><br>
+		Output the minimum number of bits required for the representing in binary <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 4<br>
+						Output:3<br>
+						Input: 16 <br>
+						Output: 5<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -68,18 +63,18 @@ <h2>Introduction </h2>
 		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
 				every word in the dictionary!!)
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-			in the <br/> dictionary listed in lexicographic order and then a valid word present in dictionary  <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			in the <br> dictionary listed in lexicographic order and then a valid word present in dictionary  <br><br><hr>
+						<center><b>Output Specification</b></center><br>
 			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 3 A B C AC <br>
+						Output: 4<br>
+						Input: 3 A B C BC<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp1/prevlab.html b/src/lab/exp1/prevlab.html
index 8ae20c02..2d69db14 100755
--- a/src/lab/exp1/prevlab.html
+++ b/src/lab/exp1/prevlab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -190,7 +185,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -223,8 +218,8 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><span style="color:#cccccc; font-size:12px;">After choosing file, click load button below </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
@@ -235,31 +230,31 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp1/prob_desc.html b/src/lab/exp1/prob_desc.html
index da8c6177..1ccf486b 100755
--- a/src/lab/exp1/prob_desc.html
+++ b/src/lab/exp1/prob_desc.html
@@ -1,36 +1,31 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>Experiment 1</title>
-        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-        <link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css">
+        <link href="../css/style.css" media="screen" rel="stylesheet" type="text/css">
         <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+        <link href="../css/prettify.css" rel="stylesheet" type="text/css">
         <script src="../colorjs/prettify.js" type="text/javascript"></script>
-	<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+	<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 	<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 	<div id="content">
 	<ol>
 	<li> 
         <h2>Problem 1:</h2>
 	Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as binary number
-						<br/><br/><hr/>
-	<b>Input Specification</b><br/>
-	Input contains a single positive integer(&lt; 10^6) <br/><br/><hr/>
-	<b>Output Specification</b><br/>
-	Output the minimum number of bits required for the representing in binary <br/><br/><hr/>
-	<b>Sample Input and Output</b><br/>
-	Input: 4<br/>
-	Output: 3<br/>
-	Input: 16 <br/>
-	Output: 5<br/>
-	<hr/>
+						<br><br><hr>
+	<b>Input Specification</b><br>
+	Input contains a single positive integer(&lt; 10^6) <br><br><hr>
+	<b>Output Specification</b><br>
+	Output the minimum number of bits required for the representing in binary <br><br><hr>
+	<b>Sample Input and Output</b><br>
+	Input: 4<br>
+	Output: 3<br>
+	Input: 16 <br>
+	Output: 5<br>
+	<hr>
 	</li>
 	<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -43,18 +38,18 @@ <h2>Problem 1:</h2>
 		if input is AC, output is 4. (You may avoid generating all the words and comparing the word with
 				every word in the dictionary!!)
 </p>
-						<br/><br/><hr/>
-<b>Input Specification</b><br/>
+						<br><br><hr>
+<b>Input Specification</b><br>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters
-in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br/><br/><hr/>
-<b>Output Specification</b><br/>
+in the dictionary listed in lexicographic order and then a valid word present in dictionary.  <br><br><hr>
+<b>Output Specification</b><br>
 			Output must be the index of the word in the dictionary.
-				<br/><br/><hr/>
-						<b>Sample Input and Output</b><br/>
-						Input: 3 A B C AC <br/>
-						Output: 4<br/>
-						Input: 3 A B C BC<br/>
-						Output: 6<br/>
+				<br><br><hr>
+						<b>Sample Input and Output</b><br>
+						Input: 3 A B C AC <br>
+						Output: 4<br>
+						Input: 3 A B C BC<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp1/quiz.html b/src/lab/exp1/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp1/quiz.html
+++ b/src/lab/exp1/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp1/realcontent.html b/src/lab/exp1/realcontent.html
index 99776baf..40b1035c 100755
--- a/src/lab/exp1/realcontent.html
+++ b/src/lab/exp1/realcontent.html
@@ -1,10 +1,5 @@
-<!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><h1 id="main-title">
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><h1 id="main-title">
 Numerical Representation
 </h1>
 
@@ -13,30 +8,30 @@ <h2>Introduction </h2>
 <p> 
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
 </p>
-<br/>
+<br>
 <ol>
 <li><h2>Problem 1:</h2>
 <p> 
 Given a positive integer (&lt;= 1000000), find the minimum number of bits required to represent it as a binary number.
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr>
+<b>Input Specification</b><br>
 <p>
 Input contains a single positive integer(&lt; 10<sup>6</sup>).
 </p>
-<br/><hr/>
-<b>Output Specification</b><br/>
+<br><hr>
+<b>Output Specification</b><br>
 <p>
 Output the minimum number of bits required for the representing in binary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 4<br/>
-Output:3<br/>
-Input: 16 <br/>
-Output: 5<br/>
-<br/><hr/>
-<br/>
+<br><hr>
+<b>Sample Input and Output</b><br>
+Input: 4<br>
+Output:3<br>
+Input: 16 <br>
+Output: 5<br>
+<br><hr>
+<br>
 </li>
 
 <li><h2>Problem 2:</h2>
@@ -44,23 +39,23 @@ <h2>Introduction </h2>
 Given N(&lt;=26) followed by N distinct characters, we can find all possible 2<sup>N</sup> words(sequence of characters) which preserve the ordering in the input (assuming that all words are valid words in the language). For example, if N is 3 and chatacters are A, B and C, the words in the alphabet order are A, AB, ABC, AC, B, BC and C. Your task now, is to find the index of the word in the dictionary. i.e., if input is AC, output is 4. You may avoid generating all the words and comparing the word with every word in the dictionary.
 
 </p>
-<br/><hr/>
-<b>Input Specification</b><br/>
+<br><hr>
+<b>Input Specification</b><br>
 <p>
 Input contains a number N representing the number of alphabets(&lt;=26) followed by a space and N characters in the dictionary listed in lexicographic order and then a valid word present in dictionary.
 </p>
-<br/><hr/>						
-<b>Output Specification</b><br/>
+<br><hr>						
+<b>Output Specification</b><br>
 <p>
 Output must be the index of the word in the dictionary.
 </p>
-<br/><hr/>
-<b>Sample Input and Output</b><br/>
-Input: 3 A B C AC <br/>
-Output: 4<br/>
-Input: 3 A B C BC<br/>
-Output: 6<br/>
-<br/><hr/>
+<br><hr>
+<b>Sample Input and Output</b><br>
+Input: 3 A B C AC <br>
+Output: 4<br>
+Input: 3 A B C BC<br>
+Output: 6<br>
+<br><hr>
 </li>
 </ol></div> 
 
@@ -68,29 +63,29 @@ <h2>Introduction </h2>
 <h2>Theory</h2> 
 <h3>Problem 1</h3>
 <p>
-Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br/>
-n=1, gives<br/>
-0,1<br/>
-n=2, gives<br/>
+Let us try to find how many binary numbers can be generated when you are given a fixed number of bits,say n.<br>
+n=1, gives<br>
+0,1<br>
+n=2, gives<br>
 00,01,10,11
-n=3, gives<br/>
-000,001,010,011,100,101,110,111<br/>
-etc.<br/>
+n=3, gives<br>
+000,001,010,011,100,101,110,111<br>
+etc.<br>
 </p>
 <p>
 It can be seen easily by the multiplication principle that for n bits this number is 2<sup>n</sup>. One of these number corresponds to the 0 in decimal, so the biggest number possible is 2<sup>n</sup> - 1. Therefore, given a number, say N, it can fit in n bits if N is less than 2^n. Hence, the number of bits required to fit a number N is equal to ceil(log2(N)). Now finding ceil(log2(N)) can be done easily by repeatedly dividing the given number, N, by two until you get 0 as the quotient. For example, let N=96
 </p>
 <p>
-Then,<br/>
-Step 1 :96/2 gives quotient as 48<br/>
-Step 2 :48/2 gives quotient as 24<br/>
-Step 3 :24/2 gives quotient as 12<br/>
-Step 4 :12/2 gives quotient as 6<br/>
-Step 5 :6/2 gives quotient as 3<br/>
-Step 6 :3/2 gives quotient as 1<br/>
+Then,<br>
+Step 1 :96/2 gives quotient as 48<br>
+Step 2 :48/2 gives quotient as 24<br>
+Step 3 :24/2 gives quotient as 12<br>
+Step 4 :12/2 gives quotient as 6<br>
+Step 5 :6/2 gives quotient as 3<br>
+Step 6 :3/2 gives quotient as 1<br>
 </p>       
 
-<br/>
+<br>
 
 <h2>Problem 2</h2>
 <p>
diff --git a/src/lab/exp1/test.html b/src/lab/exp1/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp1/test.html
+++ b/src/lab/exp1/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
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 <form action="judge.py" method="get">
 		<header id="site_head">
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@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
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 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
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-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
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diff --git a/src/lab/exp1/theory.html b/src/lab/exp1/theory.html
index eac319a1..e19985f7 100755
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-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
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-	        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css"/>
-       		<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css"/>
+	        <link href="../css/common.css" media="screen" rel="stylesheet" type="text/css">
+       		<link href="../css/style.css" media="screen" rel="stylesheet" type="text/css">
 	        <script src="../js/jquery-1.4.2.min.js" type="text/javascript"></script>
-	        <link href="../css/prettify.css" rel="stylesheet" type="text/css"/>
+	        <link href="../css/prettify.css" rel="stylesheet" type="text/css">
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 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
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diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index ff6aa4ed..8b5160d5 100644
--- a/src/lab/exp10/Experiment.html
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index d709afea..0755d57a 100644
--- a/src/lab/exp10/Feedback.html
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index 880e1d41..4cd1f1f2 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -1,35 +1,30 @@
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index 2a0ea0f7..60d359cc 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index f0504759..62bbe92c 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index ee3b150d..bc3ae485 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 9ff54b88..6f299b38 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
+++ b/src/lab/exp10/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index e37d1bd9..ce3418c8 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index cb980279..8a68aec9 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index 133bcdc0..1a51a348 100755
--- a/src/lab/exp10/Hints2/Hint_3.html
+++ b/src/lab/exp10/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index e7ffdf78..00e41d29 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index 05e82fea..024d2d83 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,69 +95,69 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 In this experiment we introduce you to two very famous algorithmic problems.One problem is longest continuous decreasing subsequence problem and other one is longest increasing subsequence problem.
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
-<br/>
+<br>
 <p> 
 Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.
 </p>
 <p>
 Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which are strictly decreasing from left to right. For example, if we have the series ”2 1 9 8 10 7 5 4 3 1 10”, then the subsequence ”10 7 5 4 3 1” is contiguously arranged and monotonically decreasing. Thus, the answer to be printed out for the length of ”10 7 5 4 3 1” which is 6. Note that the sequence ”9 8 7 5 4 3 1” is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file. Each integer is &lt;= 10<sup>9</sup>  and the length of the input sequence is &lt;= 10<sup>7</sup>.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Print the length of the longest continuous decreasing subsequence.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
-Output:6<br/>
-Input: 1 2 3 4 5 6 7 8<br/>
-Output: 1<br/>
+Input: 2 1 9 8 10 7 5 4 3 1 10 <br>
+Output:6<br>
+Input: 1 2 3 4 5 6 7 8<br>
+Output: 1<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
-<br/>
+<br>
 <p> 
 Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey).
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain two lines. The first line contains the number of integers in the sequence, N(&lt;=1000) and the next line contains N positive integers (each &lt;=10<sup>9</sup>).
 
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Print the length of the longest increasing subsequence of the given input sequence.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 10<br/>
-1 2 9 4 7 3 11 8 14 6<br/>
-Output:6<br/>
-Input: 6 <br/>
-1 3 2 10 4 5<br/>
-Output: 4<br/>
+Input: 10<br>
+1 2 9 4 7 3 11 8 14 6<br>
+Output:6<br>
+Input: 6 <br>
+1 3 2 10 4 5<br>
+Output: 4<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
index 49254409..40553931 100644
--- a/src/lab/exp10/Manual.html
+++ b/src/lab/exp10/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
index e39d89e9..ba933e69 100644
--- a/src/lab/exp10/Objective.html
+++ b/src/lab/exp10/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
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+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
index 41468cd2..be1eee16 100644
--- a/src/lab/exp10/Procedure.html
+++ b/src/lab/exp10/Procedure.html
@@ -1,35 +1,30 @@
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quizzes.html
index 20533bb7..41c37c41 100644
--- a/src/lab/exp10/Quizzes.html
+++ b/src/lab/exp10/Quizzes.html
@@ -1,31 +1,26 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
@@ -60,7 +55,7 @@
 
 
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -74,7 +69,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -115,14 +110,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index 313289e6..b832bd9f 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,14 +96,14 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 This is a fairly straight-forward problem. We have to determine the length of the longest subsequence in which all the elements are smaller than the previous ones. It is easy to see that each of these decresing subsequences will end either when the current number is bigger than the previous number, or when the current number is the final number in the sequence. Also, the end of one sequence marks the beginning of another sequence. So, this problem is easy to solve if we can note down the lengths of these sequences and find the largest number in them. All this can be done while the input is being read. You just need to keep track of the length of the current sequence and the length of the largest sequence which has been seen till now. As discussed earlier, if the currrent number is lesser than the previous number then the length of the current sequence is incremented by 1, and if the current number is greater than the previous number, then the current sequnce ends and we check whether its length is the greatest that has been seen till now, and we also start a new sequence with length equal to 1. When, then input sequence ends then also the current sequence is deemed as terminated, and we again check its length against the length of the largest sequence seen till now.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 This is a very famous problem. It's known as longest increasing subsequence problem.Let us consider a naive approach of solving this problem. For every subsequence if it is a increasing subsequence we try to update the maximum length of the longest increasing subsequence.If we analyse the time complexity of this appraoch it is clear that it is goin to take 2<sup>N</sup>*N operations. So, if N = 30, this approach would take 32212254720 (~3*10<sup>11</sup>) operations. Looking at the constraints it is obvious that this algorithm is not feasible. Now we look at the standard solution. You may refer wikipedia for the same.  
 </p>
@@ -123,7 +118,7 @@ <h3>Recursive formulation </h3>
 <b> best[i] = max(1,best[j]+1|j&lt; i &amp;&amp; Seq[i]&gt;Seq[j]) </b>
 </p>
 <p align="right"></p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp10/default.html b/src/lab/exp10/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp10/default.html
+++ b/src/lab/exp10/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp10/edit_area/plugins/charmap/popup.html b/src/lab/exp10/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp10/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp10/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp10/furtherReadings.html b/src/lab/exp10/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp10/furtherReadings.html
+++ b/src/lab/exp10/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp10/lab.html b/src/lab/exp10/lab.html
index 6ac31633..89c6c810 100755
--- a/src/lab/exp10/lab.html
+++ b/src/lab/exp10/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,14 +220,14 @@ <h1>  Sequences </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 
@@ -240,31 +235,31 @@ <h1>  Sequences </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp10/lab_test.html b/src/lab/exp10/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp10/lab_test.html
+++ b/src/lab/exp10/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp10/objective.html b/src/lab/exp10/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp10/objective.html
+++ b/src/lab/exp10/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp10/prob_desc.html b/src/lab/exp10/prob_desc.html
index dce75c3d..40f67299 100755
--- a/src/lab/exp10/prob_desc.html
+++ b/src/lab/exp10/prob_desc.html
@@ -1,55 +1,50 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
 Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
 						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
 						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
 						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
 						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
 
-					<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
-						Output:6<br/>
-						Input: 1 2 3 4 5 6 7 8<br/>
-						Output: 1<br/>
-						<hr/>
+					<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br><br><hr>
+						<center><b>Output Specification</b></center><br>
+					Print the length of the longest continuous decreasing subsequence <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br>
+						Output:6<br>
+						Input: 1 2 3 4 5 6 7 8<br>
+						Output: 1<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
 						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
 	positive integers (each &lt;=10^9).
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Print the length of the longest increasing subsequence of the given input sequence <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
 						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br/>
-						Output:6<br/>
-						Input: 6 <br/>
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
+						10<br>
+						1 2 9 4 7 3 11 8 14 6<br>
+						Output:6<br>
+						Input: 6 <br>
+						       1 3 2 10 4 5<br>
+						Output: 4<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp10/quiz.html b/src/lab/exp10/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp10/quiz.html
+++ b/src/lab/exp10/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp10/test.html b/src/lab/exp10/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp10/test.html
+++ b/src/lab/exp10/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
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@@ -121,7 +116,7 @@
 	
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+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp10/theory.html b/src/lab/exp10/theory.html
index 2f48809f..630b16ac 100755
--- a/src/lab/exp10/theory.html
+++ b/src/lab/exp10/theory.html
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-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
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 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
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diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index 21e39e08..f34fd016 100644
--- a/src/lab/exp2/Experiment.html
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 	<header>
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index 8874a5db..1135f1a8 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -1,35 +1,30 @@
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index f85d4cf4..5097d27a 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
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-
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 4010a9a8..5d79d7e1 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -1,7 +1,3 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre> 
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index 5f9935e7..f0cac8d6 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index f20146a9..d17660b7 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index 1a17d098..9a11eaa9 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
 -&gt;long long N,sum=0;
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 82d419fd..9dfc62f4 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 main(){
 	/*perfect number or not*/
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index 1f1110b6..9501121f 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp2/Hints2/Hint_0.html
+++ b/src/lab/exp2/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index 62630617..64308392 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;until a,b are not both 1
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 09f75e4b..2ee8ec2e 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
+++ b/src/lab/exp2/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index 45ae942f..fef86721 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
+++ b/src/lab/exp2/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan a,b
 -&gt;
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index a2f140f2..f239af7b 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index a2f140f2..f239af7b 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index 4953c71b..4d01158b 100644
--- a/src/lab/exp2/Introduction.html
+++ b/src/lab/exp2/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,65 +95,65 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 Many students in some class or either might have been interested in Number theory as it is
 so much fun in solving those riddles.Here we present two problems to refresh your skills.
 Hope you will love them.And yea the difference is that you may not have learnt computer programming
 back then but you know some computer programming now  so you can use the computer :) and program the task. 
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p> 
 A number is called perfect, if the sum of all its proper divisors is the number itself. Write a program to test, whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its proper positive divisors and 1 + 2 + 3 = 6.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains a single positive integer(&lt; 10<sup>10</sup>). Use long long for the number.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
-<br/><hr/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
+<br><hr>
 <p>
-Input: 28<br/>
-Output: YES<br/>
-Input: 16<br/>
-Output: NO<br/>
-<br/></p>
-<br/>
+Input: 28<br>
+Output: YES<br>
+Input: 16<br>
+Output: NO<br>
+<br></p>
+<br>
 <p align="right"></p>
 <h2>Problem 2:</h2>
 <p> 
 Interestingly, every positive rational number can be expressed in the form q + 1/E. where q is a non-negative integer and E is either the number 1 or an expression of the same form as above. We call such an expression a continued fraction. For eg., 239/51 is equivalent to 239/51 = 4 + 1/(1+(1/2+(1/(5+1/(2+(1/1)))))) Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2 ) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains 2 positive integers separated by a space.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
 must be  separated by spaces.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 239 51 <br/>
-Output: 4 1 2 5 2<br/>
-Input: 27 10<br/>
-Output: 2 1 2 2<br/>
+Input: 239 51 <br>
+Output: 4 1 2 5 2<br>
+Input: 27 10<br>
+Output: 2 1 2 2<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index 0953e107..fc722fb3 100644
--- a/src/lab/exp2/Manual.html
+++ b/src/lab/exp2/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index 88eeb8b0..cf8fd652 100644
--- a/src/lab/exp2/Objective.html
+++ b/src/lab/exp2/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index da118f60..3e868570 100644
--- a/src/lab/exp2/Procedure.html
+++ b/src/lab/exp2/Procedure.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
index f58f0a53..aad2dfd6 100644
--- a/src/lab/exp2/Quizzes.html
+++ b/src/lab/exp2/Quizzes.html
@@ -1,31 +1,26 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -74,7 +69,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -115,14 +110,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="exp
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index fe072af3..2961ffdb 100644
--- a/src/lab/exp2/Theory.html
+++ b/src/lab/exp2/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,7 +95,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Beauty of Numbers</h1>
-<br/><div class="content" id="experiment-article-section-2-content">
+<br><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 P is divisor of Q, if dividing Q by P does not leave any remainder. A number, N, is called a perfect number, if the sum of all such divisors of N(not including N) is equal to N. 6 is the smallest perfect number. It's factors are 1,2,3 and their sum is 1+2+3=6. So, to check whether a number, say N, is perfect or not, it is required to find all the divisors of that number. The easiest way to do this is to check every number form 2 to N-1 if it is dividing N completely or not, and take the sum of all the divisor. While this may work well for small numbers, it would be very time consuming for large numbers.
@@ -109,29 +104,29 @@ <h2>Problem 1</h2>
 A better solutin can be built by observing that many numbers can easily be ruled out as not divisors. For instance, all the numbers between N/2 and N cannot be divisors. Similarly, all numbers between N/2 and N/3 cannot be divisors of N, and so on. So, at each step we can check two numbers to be divisors of N and at the same time we can eliminate a fraction of the numbers less than N as not divisors and putting an upper bound on the next biggest possible divisor. Lets apply this tactic to find the divisors of 60.
 </p>
 <p>
-60 divided by 2 gives 30 as the quotient and 0 as the remainder. So, 2 and 30 are divisors and there are no other divisors greater than 30. SUM=32+1=33 <br/>
-60 divided by 3 gives 20 as the quotient and 0 as the remainder. So, 3 and 20 are divisors and there are no other divisors greater than 20. SUM=33+23=46<br/>
-60 divided by 4 gives 15 as the quotient and 0 as the remainder. So, 4 and 15 are divisors and there are no other divisors greater than 15. SUM=46+19=65<br/>
-60 divided by 5 gives 12 as the quotient and 0 as the remainder. So, 5 and 12 are divisors and there are no other divisors greater than 12. SUM=65+17=82<br/>
-60 divided by 6 gives 10 as the quotient and 0 as the remainder. So, 6 and 10 are divisors and there are no other divisors greater than 10. SUM=82+16=98<br/>
-60 divided by 7 gives 8 as the quotient and 4 as the remainder. So, 7 is not a divisor and there are no other divisors greater than or equal to 8.<br/>
-<br/><br/>
+60 divided by 2 gives 30 as the quotient and 0 as the remainder. So, 2 and 30 are divisors and there are no other divisors greater than 30. SUM=32+1=33 <br>
+60 divided by 3 gives 20 as the quotient and 0 as the remainder. So, 3 and 20 are divisors and there are no other divisors greater than 20. SUM=33+23=46<br>
+60 divided by 4 gives 15 as the quotient and 0 as the remainder. So, 4 and 15 are divisors and there are no other divisors greater than 15. SUM=46+19=65<br>
+60 divided by 5 gives 12 as the quotient and 0 as the remainder. So, 5 and 12 are divisors and there are no other divisors greater than 12. SUM=65+17=82<br>
+60 divided by 6 gives 10 as the quotient and 0 as the remainder. So, 6 and 10 are divisors and there are no other divisors greater than 10. SUM=82+16=98<br>
+60 divided by 7 gives 8 as the quotient and 4 as the remainder. So, 7 is not a divisor and there are no other divisors greater than or equal to 8.<br>
+<br><br>
 </p>
 <p>
 Now, we see that there is no need to see any more divisors. The divisors of 60 are 2,30,3,20,4,15,5,12,6 and 10. And their sum is 97. So, 60 is not a perfect number. Lets try this procedure on 28 which is the next prefect number after 6.
 </p>
 <p>
-28 divided by 2 gives 14 as the quotient and 0 as the remainder. So, 2 and 14 are divisors and there are no other divisors greater than 14. SUM=1+16=17<br/>
-28 divided by 3 gives 9 as the quotient and 2 as the remainder. So, 3 is not a divisor and there are no other divisors greater than or equal to 9. SUM=17<br/>
-28 divided by 4 gives 7 as the quotient and 0 as the remainder. So, 4 and 7 are divisors and there are no other divisors greater than 7. SUM=17+11=28<br/>
-28 divided by 5 gives 5 as the quotient and 3 as the remainder. So, 5 is not a divisor and there are no other divisors greater than 5. SUM=28<br/>
-<br/><br/></p>
+28 divided by 2 gives 14 as the quotient and 0 as the remainder. So, 2 and 14 are divisors and there are no other divisors greater than 14. SUM=1+16=17<br>
+28 divided by 3 gives 9 as the quotient and 2 as the remainder. So, 3 is not a divisor and there are no other divisors greater than or equal to 9. SUM=17<br>
+28 divided by 4 gives 7 as the quotient and 0 as the remainder. So, 4 and 7 are divisors and there are no other divisors greater than 7. SUM=17+11=28<br>
+28 divided by 5 gives 5 as the quotient and 3 as the remainder. So, 5 is not a divisor and there are no other divisors greater than 5. SUM=28<br>
+<br><br></p>
 <p>
 We need not check any more numbers. The SUM is 28, and hence, 28 is a perfect number.
 </p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 Consider the fraction A/B. We use two variables A,B to represent a fraction. Lets see how can we solve the
 problem. A/B = q + 1/E. How can we find q,E given A,B such that E&amp;gt1.; From math basics any fraction can be
@@ -141,7 +136,7 @@ <h2>Problem 2</h2>
 we express E in terms of some (x,y) where x = B and y = A-B*q and do the same operation as we have done on (A,B).
 It is recommended to use while loop and handle the termination case properly while coding.
 </p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp2/bk_index.html b/src/lab/exp2/bk_index.html
index b47e171c..8909a0ec 100755
--- a/src/lab/exp2/bk_index.html
+++ b/src/lab/exp2/bk_index.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -49,17 +44,17 @@ <h2>Introduction</h2>
   whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
   proper positive divisors and 1 + 2 + 3 = 6.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 28<br>
+						Output: YES<br>
+						Input: 16 <br>
+						Output: NO<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -71,19 +66,19 @@ <h2>Introduction</h2>
 Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
 ) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
 			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 239 51 <br>
+						Output: 4 1 2 5 2<br>
+						Input: 27 10<br>
+						Output: 2 1 2 2<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp2/default.html b/src/lab/exp2/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp2/default.html
+++ b/src/lab/exp2/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp2/edit_area/plugins/charmap/popup.html b/src/lab/exp2/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp2/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp2/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp2/furtherReadings.html b/src/lab/exp2/furtherReadings.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp2/furtherReadings.html
+++ b/src/lab/exp2/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp2/lab.html b/src/lab/exp2/lab.html
index 3077f66e..5e91cfdc 100755
--- a/src/lab/exp2/lab.html
+++ b/src/lab/exp2/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,46 +220,46 @@ <h1>  Beauty of Numbers  </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload">
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp2/lab_test.html b/src/lab/exp2/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp2/lab_test.html
+++ b/src/lab/exp2/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp2/objective.html b/src/lab/exp2/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp2/objective.html
+++ b/src/lab/exp2/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp2/previndex.html b/src/lab/exp2/previndex.html
index bd854ffb..c254a5b4 100755
--- a/src/lab/exp2/previndex.html
+++ b/src/lab/exp2/previndex.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -49,17 +44,17 @@ <h2>Introduction</h2>
   whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
   proper positive divisors and 1 + 2 + 3 = 6.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 28<br>
+						Output: YES<br>
+						Input: 16 <br>
+						Output: NO<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -71,19 +66,19 @@ <h2>Introduction</h2>
 Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
 ) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
 			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 239 51 <br>
+						Output: 4 1 2 5 2<br>
+						Input: 27 10<br>
+						Output: 2 1 2 2<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp2/prob_desc.html b/src/lab/exp2/prob_desc.html
index 58df1984..3fd6e716 100755
--- a/src/lab/exp2/prob_desc.html
+++ b/src/lab/exp2/prob_desc.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
@@ -18,17 +13,17 @@
   whether a given number is perfect or not. The first perfect number is 6, because 1, 2, and 3 are its
   proper positive divisors and 1 + 2 + 3 = 6.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 28<br/>
-						Output: YES<br/>
-						Input: 16 <br/>
-						Output: NO<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is perfect or not<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 28<br>
+						Output: YES<br>
+						Input: 16 <br>
+						Output: NO<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -40,19 +35,19 @@
 Write a program which takes two integers (eg. 239 and 51) and output a set of integers (eg. 4 1 2 5 2
 ) which are the sequence of q's until E becomes 1. For another example for 27 and 10 Output 2 1 2 2.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains 2 positive integers separated by a space.  
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 			Output a set of  integers which are the sequence of q's until E becomes 1, the set of integers
 			must be  separated by spaces.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 239 51 <br/>
-						Output: 4 1 2 5 2<br/>
-						Input: 27 10<br/>
-						Output: 2 1 2 2<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 239 51 <br>
+						Output: 4 1 2 5 2<br>
+						Input: 27 10<br>
+						Output: 2 1 2 2<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp2/quiz.html b/src/lab/exp2/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp2/quiz.html
+++ b/src/lab/exp2/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp2/test.html b/src/lab/exp2/test.html
index 4ed53945..c84d68ff 100755
--- a/src/lab/exp2/test.html
+++ b/src/lab/exp2/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp2/theory.html b/src/lab/exp2/theory.html
index d418f615..ac65080d 100755
--- a/src/lab/exp2/theory.html
+++ b/src/lab/exp2/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 661e1169..ebe4115f 100644
--- a/src/lab/exp3/Experiment.html
+++ b/src/lab/exp3/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index e04d6355..604070be 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index 8203e4f7..aae81051 100644
--- a/src/lab/exp3/Further Readings.html	
+++ b/src/lab/exp3/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
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 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index ae61af46..9bd3faa4 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index a8ce6731..b1037486 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index 783699ec..808c1dda 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Take care of data type of n(parameter) 
   while passing arguments 
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 5f3ddc1f..32abd925 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
+++ b/src/lab/exp3/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index 6d9b9518..a8b59a94 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index c1dc74e2..0b0e074a 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 378b7fcf..24623eaa 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 -&gt;declare and scan the units 
   digit
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index 8da8cd23..0ecd21e8 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index 8da8cd23..0ecd21e8 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 main(){
   
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 8ad916b3..8f33c454 100644
--- a/src/lab/exp3/Introduction.html
+++ b/src/lab/exp3/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
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-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -103,68 +98,68 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 <p> 
 Many students in some class or either might have been interested in Number theory as it is so much fun in solving those riddles.Here we present two problems to refresh your skills. Hope you will love them. And the difference is that you may not have learnt computer programming back then but you know some computer programming now, so you can use the computer and program the task. 
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p> 
 Given a positive integer there is an easy way to check whether this integer is divisible by 9 or not. This was very popular before your mod operator was invented. The solution is simple, if you add the digits of the number repeatedly and finally get 9, then the given number is divisible by 9, else it is not divisible by 9. For example,
 
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains a single positive integer(&lt; 10<sup>10</sup>). Use long long for the number.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 12101<br/>
-Output: NO<br/>
-Input: 9009 <br/>
-Output: YES<br/>
+Input: 12101<br>
+Output: NO<br>
+Input: 9009 <br>
+Output: YES<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
 <p> 
 A whole number is said to be CIRCULAR if, when you multiply the number by its units decimal digit,
 the result is the number with its decimal digits rotated to the right, where the units digit becoming
 its high-order digit. For example, 102564 is a circular number because of the multiplication:
-<br/>
+<br>
 
-102564<br/>
-*4<br/>
--------<br/>
-410256<br/>
--------<br/>
-<br/><br/><br/><br/><br/><br/></p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+102564<br>
+*4<br>
+-------<br>
+410256<br>
+-------<br>
+<br><br><br><br><br><br></p>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains a single postive integer N(&lt; 10).
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must contain a smallest circular positive number whose units digit must be N.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 2  <br/>
-Output:105263157894736842<br/>
-Input: 4<br/>
-Output: 102564<br/>
+Input: 2  <br>
+Output:105263157894736842<br>
+Input: 4<br>
+Output: 102564<br>
 Please note that result may not fit even in long long(64 bit integer).
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></div>						</div>
+<br><hr>
+<br><br><br><br><br><br><br><br><br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index 535c8038..4fe6c6c0 100644
--- a/src/lab/exp3/Manual.html
+++ b/src/lab/exp3/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index f09b473f..070e9122 100644
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 742dd056..8e97db19 100644
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 039e2344..53ed2851 100644
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -197,110 +192,110 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -308,7 +303,7 @@ <h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="exper
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 3b03ea98..5f60b805 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -105,28 +100,28 @@ <h2>Problem 1</h2>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
 </p>
 <p>
-N=W*1000*X+100+Y*10+Z<br/>
-eg: For N=3548<br/>
-N=3*1000+5*100+4*10+8<br/>
-<br/><br/><br/></p>
+N=W*1000*X+100+Y*10+Z<br>
+eg: For N=3548<br>
+N=3*1000+5*100+4*10+8<br>
+<br><br><br></p>
 <p>
 So, clearly the remainder after divison with 9 depends upon remainder after division with 3000, 500, 40 and 8, which are 3, 5, 4, and 8 respectively. Hence, the divisibility test for 9 states that a number is divisible by 9 if the sum digits of the number is divisible by 9. How to check whether sum of the digits is divisible by nine? Keep on doing the same test on the sum until the problem becomes trivial.
 </p>
 <p>
-So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br/>
-346 gives 6 as the remainder  SUM=6<br/>
-34 gives 4 as the remainder   SUM=10<br/>
-3 gives 3 as remainder        SUM=13<br/>
-<br/><br/><br/><br/></p>
+So, how do we find the sum of the digits of a number. For this one can repeatedly take mod of the number by 10 and then divide the number by 10, until the number becomes less than 10. For example:<br>
+346 gives 6 as the remainder  SUM=6<br>
+34 gives 4 as the remainder   SUM=10<br>
+3 gives 3 as remainder        SUM=13<br>
+<br><br><br><br></p>
 <p>
-Now repeat the same procedure with SUM=13<br/>
-13 gives 3 as the remainder   SUM=3<br/>
-1 gives 1 as the remainder    SUM=4<br/>
-Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br/>
-<br/><br/><br/><br/></p>
+Now repeat the same procedure with SUM=13<br>
+13 gives 3 as the remainder   SUM=3<br>
+1 gives 1 as the remainder    SUM=4<br>
+Now, SUM=4 is not divisible by 9. Hence, 346 is not divisible by 9.<br>
+<br><br><br><br></p>
 
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Suppose the number we require is say (X[0],X[1],...,X[N]). We dont know what X[0] ,X[1],...X[N-1] are
@@ -136,51 +131,51 @@ <h2>Problem 2</h2>
 <b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which
 we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time. So we carry on like this.
-<br/> <br/>
-Step1: xxxxxx4  <br/>
-*4<br/>
-------<br/>
-6 and carry = 1<br/>
-------<br/>
-Step2:<br/>
-xxxxx64<br/>
-*4<br/>
-------<br/>
-56 and carry = 2<br/>
-------<br/>
-Step3:<br/>
-xxxx564<br/>
-*4<br/>
-------<br/>
-256 and carry = 2<br/>
-------<br/>
-Step4:<br/>
-xxx2564<br/>
-*4<br/>
-------<br/>
-0256 and carry = 1<br/>
-------<br/>
-Step5:<br/>
-xx02564<br/>
-*4<br/>
-------<br/>
-10256 and carry = 0<br/>
-------<br/>
-Step6:<br/>
-x102564<br/>
-*4<br/>
-------<br/>
-410256 and carry = 0<br/>
-------<br/>
+<br> <br>
+Step1: xxxxxx4  <br>
+*4<br>
+------<br>
+6 and carry = 1<br>
+------<br>
+Step2:<br>
+xxxxx64<br>
+*4<br>
+------<br>
+56 and carry = 2<br>
+------<br>
+Step3:<br>
+xxxx564<br>
+*4<br>
+------<br>
+256 and carry = 2<br>
+------<br>
+Step4:<br>
+xxx2564<br>
+*4<br>
+------<br>
+0256 and carry = 1<br>
+------<br>
+Step5:<br>
+xx02564<br>
+*4<br>
+------<br>
+10256 and carry = 0<br>
+------<br>
+Step6:<br>
+x102564<br>
+*4<br>
+------<br>
+410256 and carry = 0<br>
+------<br>
 
 At step 6, you can observe that the number is exactly the circular number. So we stop doing it.
 The stopping criteria is simple. The carry must be 0 and the units digit with which we multiply
 must be same as the last digit generated in the product. Here multiplication digit is 4. Thus the output is 102564.
 
 
-<br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/></p>
+<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br><br></p>
 <p align="right"></p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp3/default.html b/src/lab/exp3/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp3/default.html
+++ b/src/lab/exp3/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp3/edit_area/plugins/charmap/popup.html b/src/lab/exp3/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp3/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp3/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp3/furtherReadings.html b/src/lab/exp3/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp3/furtherReadings.html
+++ b/src/lab/exp3/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp3/lab.html b/src/lab/exp3/lab.html
index 54e235a1..3fd22f1a 100755
--- a/src/lab/exp3/lab.html
+++ b/src/lab/exp3/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,46 +220,46 @@ <h1> More on Numbers </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload">
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp3/lab_test.html b/src/lab/exp3/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp3/lab_test.html
+++ b/src/lab/exp3/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp3/objective.html b/src/lab/exp3/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp3/objective.html
+++ b/src/lab/exp3/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp3/prob_desc.html b/src/lab/exp3/prob_desc.html
index 570b4db0..0ed49b10 100755
--- a/src/lab/exp3/prob_desc.html
+++ b/src/lab/exp3/prob_desc.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 				<ol>
@@ -20,17 +15,17 @@
 example
 
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 12101<br/>
-						Output: NO<br/>
-						Input: 9009 <br/>
-						Output: YES<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+	Input contains a single positive integer(&lt; 10^10) (Use long long for the number)<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Output "YES" or "NO" (quotes for clarity) corresponding to whether the number in input is divisible by 9 or not<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 12101<br>
+						Output: NO<br>
+						Input: 9009 <br>
+						Output: YES<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -45,18 +40,18 @@
 				-------
 </pre>
 	
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 			Input contains a single postive integer N( &lt; 10). 
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 				Output must contain a smallest circular positive number whose units digit must be N.
-				<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2  <br/>
-						Output:105263157894736842<br/>
-						Input: 4<br/>
-						Output: 102564<br/>
+				<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 2  <br>
+						Output:105263157894736842<br>
+						Input: 4<br>
+						Output: 102564<br>
 						<center>
 						Please note that result may not fit even in long long(64 bit integer).
 						</center>
diff --git a/src/lab/exp3/quiz.html b/src/lab/exp3/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp3/quiz.html
+++ b/src/lab/exp3/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp3/test.html b/src/lab/exp3/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp3/test.html
+++ b/src/lab/exp3/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp3/theory.html b/src/lab/exp3/theory.html
index 2b5a3e60..823abdfc 100755
--- a/src/lab/exp3/theory.html
+++ b/src/lab/exp3/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -66,7 +61,7 @@ <h2>Theory</h2>
 	<b>X[N]</b> we get 16(which is 4*4), which implies  P[M]=6.Since the number has to be circular it is obvious
 	that X[N-1] must be 6.Now again multiplying X[N-1] = 6 with X[N]=4 and yea dont forget to add the carry which 
 	we obtained in previous step.So P[M-1] = (6*4 + 1)%10 = 5 and carry is 2 this time.So we carry on like this.
-	<br/> <br/> 
+	<br> <br> 
 	Step1: xxxxxx4
 		    *4 
 		------    
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 5b26183c..29f62f4f 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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 <div id="top">
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 5372ad87..414215d1 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index fccdee7f..37de8dfc 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index e4db9776..1137118b 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare N and scan N 
 
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index 3af9f077..464c692f 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
 main(){
 -&gt; declare N and scan N 
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index dfae994c..ef847479 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
 main(){
 
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 3c3267ca..6c7dddd1 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 main(){
 int N,i;
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
+++ b/src/lab/exp4/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index dd405019..97e01058 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;int N
 
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index c7df9e82..bef7e086 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;int N
 
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index e035e806..2bd3eb2e 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index e035e806..2bd3eb2e 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	 int N;
 
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index 37111ae4..f83c3826 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,66 +95,66 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p>
-Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 	There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.
 Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.
 Factorials also turn up in calculus; for example they occur in the denominators of the terms of Taylor's formula, basically to compensate for the fact that the n-th derivative of xn is n!.
 	Factorials are also used extensively in probability theory.
 	Factorials can be useful to facilitate expression manipulation.
-<br/>Here we present two problems based on factorials.<br/>
+<br>Here we present two problems based on factorials.<br>
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p>Given a positive integer, find the number of digits in the factorial of the number.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain a single positive integer N(&lt; 10<sup>6</sup>) input from keyboard.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be the number of digits in the factorial of the given number.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 5<br/>                                  
-Output:2<br/>                                  
-Input: 52<br/>                                 
-Output: 68<br/>
+Input: 5<br>                                  
+Output:2<br>                                  
+Input: 52<br>                                 
+Output: 68<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
 <p> 
 Find the number of zeroes at the end of factorial of a number.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain a single positive integer N input from keyboard, lesser than 10^9.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be the number of zeroes at the end of the factorial of the given number.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 5<br/>
-Output:1<br/>
-Input: 25<br/>
-Output: 6<br/>
+Input: 5<br>
+Output:1<br>
+Input: 25<br>
+Output: 6<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index e0bd907b..40412446 100644
--- a/src/lab/exp4/Manual.html
+++ b/src/lab/exp4/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
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+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index 50a4ff5c..8c4c8079 100644
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index ea284e28..4fd900fc 100644
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quizzes.html
index 61612e80..1e5ee212 100644
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -115,14 +110,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 55955a91..029bc2a7 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
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+    <meta charset="utf-8">
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -102,77 +97,77 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
-We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
-1! = 1<br/>
-2! = 1*2 = 2<br/>
-3! = 1*2*3 = 6<br/>
-4! = 1*2*3*4 = 24<br/>
-.<br/>
-.<br/>
-.<br/>
-10! = 3628800<br/>
-So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br/>
-<br/><br/></p>
+We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br>
+1! = 1<br>
+2! = 1*2 = 2<br>
+3! = 1*2*3 = 6<br>
+4! = 1*2*3*4 = 24<br>
+.<br>
+.<br>
+.<br>
+10! = 3628800<br>
+So n! means multiplying all the numbers from 1 to n. For the sample input, 52, we can see from the sample output that the factorial of 52 is 68 digits and this cannot fit in long long data type in C. You may now attempt to store the answer in a string and do multiplication operation on strings(by multiplying each digit of the string individually). Now, let us see how many operations do we need for multiplying 2 strings. Consider 11!, 11! = 11*10!, assume we already have 10! stored in a string and 11 stored in a string. Now, to calculate 11! from 10! we need to multiply each digit of 11 with each digit of 10!, i.e it would take No_digits(11) * No_digits(3628800) = 2*7 = 14 operations. We consider only multiplication operations(we also have to consider addition operations for each of the biproducts and carries).<br>
+<br><br></p>
 <p>
-Similarly 53! would take 2*68=136 operations from 52!.<br/>
-52! would take 2*67 = 134 operations from 51!<br/>
-51! would take 2*65 = 130 operations from 50!.<br/>
+Similarly 53! would take 2*68=136 operations from 52!.<br>
+52! would take 2*67 = 134 operations from 51!<br>
+51! would take 2*65 = 130 operations from 50!.<br>
 
-We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br/>
-<br/></p>
+We can see that there would be a operations required for calculating  53! (No_operations = 136+134+130+...+1). Also in 1000000! the number of digits is 5565709, so we would require large amount of storage and both these difficulties make calculation of  N! hard. <br>
+<br></p>
 <p>
-Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br/>
+Is there any way to find the number of digits without actually calculating N!? Let us consider a simple problem of finding the number of digits in a number N.Consider N = 12 , we can also write this as 0.12*10<sup>2</sup> which is a 2 digit number . Consider N=125 , which can be written as 0.125 *10<sup>3</sup> which is a 3 digit number. Evidently calculating the exponent of 10 in the scientific notaion and gives the number of digits. <br>
 
-For any N, <br/>
-N=x*10<sup>exp</sup><br/> 
-=&gt; log10(N) = log10(x) + exp.<br/> 
-For n=95,<br/>
-log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br/>
-N = x*10<sup>exp</sup> , x &lt; 1 <br/> 
-Taking step on both sides. <br/>
-=&gt; step(log10(N)) = step(log10(x)+exp)<br/>
-=&gt; step(log10(N)) = exp-1<br/>
-=&gt; exp = step(log10(N))+1<br/>
-=&gt; No_digits(N) = step(log10(N))+1<br/>
-<br/><br/></p>
+For any N, <br>
+N=x*10<sup>exp</sup><br> 
+=&gt; log10(N) = log10(x) + exp.<br> 
+For n=95,<br>
+log10(95) = log10(0.95)+exp, since 95 = 0.95 *10<sup>2</sup><br>
+N = x*10<sup>exp</sup> , x &lt; 1 <br> 
+Taking step on both sides. <br>
+=&gt; step(log10(N)) = step(log10(x)+exp)<br>
+=&gt; step(log10(N)) = exp-1<br>
+=&gt; exp = step(log10(N))+1<br>
+=&gt; No_digits(N) = step(log10(N))+1<br>
+<br><br></p>
 <p>
-Applying the above formula to calculate the number of digits of N! gives<br/>
-No_digits(N!) = step(log10(N!) ) +1<br/>
-=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br/>
-=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br/></p>
+Applying the above formula to calculate the number of digits of N! gives<br>
+No_digits(N!) = step(log10(N!) ) +1<br>
+=&gt; No_digits(N!) = step(log10(N*(N-1)*(N-2)*(N-3)...*2*1)) + 1<br>
+=&gt; No_digits(N!) = step(log10(N) + log10(N-1) + log10(N-2) + ...+log10(2) + log10(1) ) +1<br></p>
 <p>
-log10(N) can be easily calculated by the log10 function in math.h.<br/>
-<br/></p>
+log10(N) can be easily calculated by the log10 function in math.h.<br>
+<br></p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
-Let us observe the zeroes in the factorial of a few numbers.<br/>
+Let us observe the zeroes in the factorial of a few numbers.<br>
 
-4!=24           (0 zeroes)<br/>
-5!=120          (1 zeroes)<br/>
-6!=720          (1 zeroes)<br/>
-7!=5040         (1 zeroes)<br/>
-8!=40320        (1 zeroes)<br/>
-9!=362880       (1 zeroes)<br/>
-10!=3628800     (2 zeroes)<br/>
-11!-14!         (2 zeroes)<br/>
-15!             (3 zeroes)<br/>
-<br/><br/></p>
+4!=24           (0 zeroes)<br>
+5!=120          (1 zeroes)<br>
+6!=720          (1 zeroes)<br>
+7!=5040         (1 zeroes)<br>
+8!=40320        (1 zeroes)<br>
+9!=362880       (1 zeroes)<br>
+10!=3628800     (2 zeroes)<br>
+11!-14!         (2 zeroes)<br>
+15!             (3 zeroes)<br>
+<br><br></p>
 <p>
-We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br/>
-<br/></p>
+We can observe that for every multiple of 5, we have a zero being added to the product. This is due to the multiplication of 5 with an even number in the product. So, our problem simplifies to counting the number of 5's in the factors of the number to be calculated. Let us formalize the proof. <br>
+<br></p>
 <p>
-Let p be a prime number.<br/>
+Let p be a prime number.<br>
 
-n!=1×2×…×(n−1)×n <br/>
-We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br/>
-Thus:<br/>
-μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br/>
-Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br/>
-<br/><br/></p>
+n!=1×2×…×(n−1)×n <br>
+We see that any integer m such that 0 &lt; m ≤ n which is divisible by p<sup>j</sup> and not p<sup>(j+1)</sup> must be counted exactly j times. That is: once in ⌊n/p⌋, once in ⌊n/(p<sup>2</sup>)⌋, …, once in ⌊n(p<sup>j</sup>)⌋. And that is all the occurrences of p as a factor of n!.<br>
+Thus:<br>
+μ(No. of occurences of p)=⌊n/p⌋+⌊n/(p<sup>2</sup>)⌋+⋯+⌊n/(p<sup>j</sup>)⌋<br>
+Ex:Number of zeroes in 25! = Number of occurences of 5 in 25! = (⌊25/5⌋+⌊25/(5^2)⌋)=5+1=6<br>
+<br><br></p>
 <p align="right"></p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp4/default.html b/src/lab/exp4/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp4/default.html
+++ b/src/lab/exp4/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp4/edit_area/plugins/charmap/popup.html b/src/lab/exp4/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp4/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp4/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp4/furtherReadings.html b/src/lab/exp4/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp4/furtherReadings.html
+++ b/src/lab/exp4/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp4/lab.html b/src/lab/exp4/lab.html
index 10693f90..1ac1c048 100755
--- a/src/lab/exp4/lab.html
+++ b/src/lab/exp4/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,46 +220,46 @@ <h1>  Factorials </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload">
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp4/lab_test.html b/src/lab/exp4/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp4/lab_test.html
+++ b/src/lab/exp4/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp4/objective.html b/src/lab/exp4/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp4/objective.html
+++ b/src/lab/exp4/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp4/prob_desc.html b/src/lab/exp4/prob_desc.html
index 18a48070..9c34f3a2 100755
--- a/src/lab/exp4/prob_desc.html
+++ b/src/lab/exp4/prob_desc.html
@@ -1,42 +1,37 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 		<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp4/quiz.html b/src/lab/exp4/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp4/quiz.html
+++ b/src/lab/exp4/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp4/test.html b/src/lab/exp4/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp4/test.html
+++ b/src/lab/exp4/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
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 <form action="judge.py" method="get">
 		<header id="site_head">
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@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
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-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
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 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
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-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
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 <div id="contentRight">
diff --git a/src/lab/exp4/theory.html b/src/lab/exp4/theory.html
index 5262241e..1ccc6849 100755
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-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index 4a2d90e4..86ef9a39 100644
--- a/src/lab/exp5/Feedback.html
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index 5cadd0de..204eeb1e 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -1,35 +1,30 @@
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index d0b12dfb..09dc2de3 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index 39e9fb8f..28d5bd1e 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index 1553b72e..82e4dc21 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index 46c475cb..2eb45e54 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index 0b00acec..287a1286 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan them 
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index 1680fa58..8b8d9758 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan the strings 
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index 4d818ec7..b0856f88 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
   -&gt;declare two strings
   -&gt;scan the strings 
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index fce5a074..68886881 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 char str1[2000];
 char str2[2000];
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index 86c273c3..0684c396 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,14 +95,14 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 String is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and/or the length changed, or it may be fixed (after creation). A string is generally understood as a data type and is often implemented as a byte (or word) array that stores a sequence of elements, typically characters, using some character encoding. A string may also denote more general array data types and/or other sequential data types and structures; terms such as byte string, or more general, string of datatype, or datatype-string, are sometimes used to denote strings in which the stored data does not(necessarily) represent text. 
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 
-<br/>
+<br>
 <p> 
 A palindrome is a symmetric character sequence that looks the same when read backwards, i.e. from
 right to left. Interestingly, human being usually discards blank spaces and punctuation marks while
@@ -116,52 +111,52 @@ <h2>Problem 1:</h2>
 <p>
 Write a program that detects palindromes. Your program should accept a string from the key board and output YES/NO.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain a string S entered  from keyboard, with number of characters less than 1000.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: Madam, I'm Adam<br/>
-Output:YES<br/>
-Input: Eve.<br/>
-Output: NO<br/>
+Input: Madam, I'm Adam<br>
+Output:YES<br>
+Input: Eve.<br>
+Output: NO<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
 <p> 
 Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by deletion of none, one or more characters.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain two strings separated by a space and size of each string is at max 10<sup>7</sup>.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: hyderabad her<br/>
-Output: YES<br/>
-Input: hyderabad dear<br/>
-Output: NO<br/>
+Input: hyderabad her<br>
+Output: YES<br>
+Input: hyderabad dear<br>
+Output: NO<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index d66152cc..99418f4e 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index 8e188ff7..41aa7d6c 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index cd907341..2f1cb108 100644
--- a/src/lab/exp5/Procedure.html
+++ b/src/lab/exp5/Procedure.html
@@ -1,35 +1,30 @@
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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@@ -43,7 +38,7 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index c5e7618b..fde0f54f 100644
--- a/src/lab/exp5/Quizzes.html
+++ b/src/lab/exp5/Quizzes.html
@@ -1,31 +1,26 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
@@ -59,7 +54,7 @@
 
 
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -73,7 +68,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -114,14 +109,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -141,110 +136,110 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -252,7 +247,7 @@ <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="exp
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index b353b93f..0eeecd72 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,7 +96,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 A palindrome is a string which reads same wheter it is read from start to end of from end to the start. In literature, however, even the capitalization of words and punctuations are ignored. So, "Rats live on no evil stars." is also a palindrome. Detection of such palindromes can be done by creating a new string in which all the punctuations have been removed and all the upper case characters have been converted to lower case characters, and then doing a test for plaindome on the new string.
 </p>
@@ -109,37 +104,37 @@ <h2>Problem 1</h2>
 Alternatively, one can create two indices and put them at the end and beginning of the string. The index at the beginning moves towards the end and vice versa. If a character at any of the indices is not an alphabet the corresponding indice is moved until an alphabet is encountered. If the alphabet is in Upper case, then it is converted into lower case. Now, the values at the indices are compared and if they are not same then the string is not a palindome. Otherwise, the check is repeated for new values of indices obtained by moving them by suffiecient amount so that an alphabet is encountered. If at any time the indices are coincident or the indices cross each other, then the string is a palindrome.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Inorder to obtain string2 from string1 by deleting 0 or more characters it is fairly obvious that the characters in string2 must appear in the same order as in string1.
-<br/>
-<br/></p>
+<br>
+<br></p>
 <p>
 </p><h4> Mathematical formulation </h4>
 <p>Suppose the length of string A is M and string B is N we need to find a N tuple (X[0],X[1],...,X[N-1])
 such that X[i] &lt; X[i+1] for 0&lt;=i&lt;=N-2 and A[X[i]] = B[i] for 0&lt;=i&lt;=N-1. Why this formulation is correct?
-B[0] occurs at X[0]<br/>
-B[1] occurs at X[1]<br/>
-..<br/>
-..<br/>
-..<br/>
-B[N-1] occurs at X[N-1]<br/>
-<br/><br/></p>
+B[0] occurs at X[0]<br>
+B[1] occurs at X[1]<br>
+..<br>
+..<br>
+..<br>
+B[N-1] occurs at X[N-1]<br>
+<br><br></p>
 <p>
 Now, we remove all other characters from A except those which appear at positions indicated by array X. Then we get string B.Thus the problem formulation is correct. The order constraint between X[i]'s is element because we want the characters in B to appear in order in A.
-<br/>
-<br/></p>
-<br/>
+<br>
+<br></p>
+<br>
 <h4> Solution</h4>
 <p>So now once we have stated the problem mathematically we would like to know how can we find
 array X subjected to the constraints mentioned.Lets see how can we find X[0]. You must be apply
 the same logic on how to find other values of array X once you are familier with X[0].
 X[0] has only one constraint to be satisfied which is A[X[0]] = B[0] . There can be many values
 of X[0] which can satisfy the above constraint. So which value should X[0] take?
-<br/>
-<br/>
-<br/><br/></p>
+<br>
+<br>
+<br><br></p>
 <h4> Proofs </h4>
 <p>
 Suppose S is a set of values which X[0] can take. We prove that X[0] should take the minimum value, amongst all the members of set S. If |S|=1 , then it is obviously valid. So, assume |S|&gt;=2. We will deal with |S|=0 case later. Lets say X[0] = b and the minimum value of the set S is a i.e a &lt; X[0]. Since we have choosen X[0] as b we need to search for B[1] [b+1 m] beacuse B[1]&gt; B[0]. It can happen that B[1] is not present in [b+1 m] at all which would imply that string B cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a then it is possible that string B might be a subsequence of string A. Thus, X[0] must take the minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen as X[0]. 
@@ -149,7 +144,7 @@ <h4> Proofs </h4>
 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO.
 </p>
 <p align="right"></p>
-<br/><p></p><br/></div>						</div>
+<br><p></p><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp5/default.html b/src/lab/exp5/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp5/default.html
+++ b/src/lab/exp5/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp5/edit_area/plugins/charmap/popup.html b/src/lab/exp5/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp5/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp5/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp5/furtherReadings.html b/src/lab/exp5/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp5/furtherReadings.html
+++ b/src/lab/exp5/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp5/lab.html b/src/lab/exp5/lab.html
index aafb2e8f..17523efb 100755
--- a/src/lab/exp5/lab.html
+++ b/src/lab/exp5/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,45 +220,45 @@ <h1>  String Operations </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/>
-<br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload">
+<br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp5/lab_test.html b/src/lab/exp5/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp5/lab_test.html
+++ b/src/lab/exp5/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp5/objective.html b/src/lab/exp5/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp5/objective.html
+++ b/src/lab/exp5/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp5/prob_desc.html b/src/lab/exp5/prob_desc.html
index 6cc8cf0d..9a917b0f 100755
--- a/src/lab/exp5/prob_desc.html
+++ b/src/lab/exp5/prob_desc.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 				<ol>
@@ -19,17 +14,17 @@
 						recognizing a palindromes like: (a) “Madam, I’m Adam.� (b) “Eve.� etc. Write a program that
 						detects palindromes. Your program should accept a string from the key board and output YES/NO.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: Madam, I'm Adam<br/>
-						Output:YES<br/>
-						Input: Eve.<br/>
-						Output: NO<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a string S entered  from keyboard, with number of characters less than 1000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be either "YES" or "NO"(quotes for clarity) depending upon whether or not it is a palindrome<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: Madam, I'm Adam<br>
+						Output:YES<br>
+						Input: Eve.<br>
+						Output: NO<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -37,16 +32,16 @@
 							Given two strings, PRINT (YES or NO) whether the second string can be obtained from the first by
 							deletion of none, one or more characters.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain two strings separated by a space and size of each string is at max 10^7<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: hyderabad her<br/>
-						Output: YES<br/>
-						Input: hyderabad dear<br/>
-						Output: NO<br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain two strings separated by a space and size of each string is at max 10^7<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+					Output must be  either "YES" or "NO" depending on whether 2<sup>nd </sup>string can be obtained from 1<sup>st </sup>string<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: hyderabad her<br>
+						Output: YES<br>
+						Input: hyderabad dear<br>
+						Output: NO<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp5/quiz.html b/src/lab/exp5/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp5/quiz.html
+++ b/src/lab/exp5/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp5/test.html b/src/lab/exp5/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp5/test.html
+++ b/src/lab/exp5/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
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 </head>
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+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp5/theory.html b/src/lab/exp5/theory.html
index b957a54f..d29566b3 100755
--- a/src/lab/exp5/theory.html
+++ b/src/lab/exp5/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -74,7 +69,7 @@ <h5> Proofs </h5>
 	 cannot be a subsequence of string A. But suppose the character is present in [a+1 b] and X[0]=a
 	 then it is possible that string B might be a subsequence of string A.Thus X[0] must take the 
 	 minimum value of set S i.e the position where first B[0]  is same as chracter of A should be chosen
-	 as X[0]. <br/> <br/>          Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
+	 as X[0]. <br> <br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;  Now if X[0] = a we shall search for X[1] in [a+1,M] and similarly X[2] in [X[1]+1,M] 
 	 and for X[i] in [X[i-1]+1,M].Thus if we can find the array X then we say YES else NO. 
 	
 	 
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index 0ea51f9c..0ad3e60b 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index 15661c38..90ce5d4e 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index 9eb4a780..069ab006 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 0b997636..8e20d9a5 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index c10c2464..0e802cd7 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index ef3240b9..6f24cb2b 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 1f1110b6..9501121f 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index 1f1110b6..9501121f 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index 5cba74dd..f68c14c5 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
 	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index 6214bb17..31bc3d8e 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 3c74cc39..50c29616 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
+++ b/src/lab/exp6/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 4ec88912..98a946a0 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 1f4e278c..9c85906a 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
+++ b/src/lab/exp6/Hints2/Hint_5.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index 429742cb..56ad40fc 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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@@ -43,7 +38,7 @@
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,64 +95,64 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p>
 
 Welcome to recursion. One of the most easiest things to code but really hard to debug! Recursion is a very powerful tool to solve problems. All loops(while, for , do while) can be simulated using recursion. Also the main step of the dynamic programming is recursion which is useful in solving many algorithmically difficult problems. Lets solve some problems now.
 
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
-<br/>
+<br>
 <p> 
 You are given scales for weighing loads. On the left side lies a single stone of known weight W &lt; 2N. You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine how many possible ways there are of placing some weights on the sides of the scales, so as to balance them (put them in a state of equilibrium).
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must be a single integer denoting the number ways in which one can balance the weight W by placing weights on any side.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 2 4<br/>
-Output: 3 <br/>
-Input: 5 10<br/>
-Output: 14 <br/>
+Input: 2 4<br>
+Output: 3 <br>
+Input: 5 10<br>
+Output: 14 <br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
 <p> 
 Given a weighing pan, n weights and a destination weight D, print “YES” or “NO” depending whether you can weight D using other weights given.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input begins with numbers of weights n, then n values denoting mass of each weight and then in the end destination weight D.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 As the output, print “YES” if it is possible to weight D, otherwise “NO”.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input:  3 1 3 4 2<br/>
-Output: YES<br/>
-Input: 2 1 3 5 <br/>
-Output: NO <br/>
+Input:  3 1 3 4 2<br>
+Output: YES<br>
+Input: 2 1 3 5 <br>
+Output: NO <br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 1958b19f..fce59639 100644
--- a/src/lab/exp6/Manual.html
+++ b/src/lab/exp6/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index 4fde018f..034806d1 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index 739cc10f..919233d6 100644
--- a/src/lab/exp6/Procedure.html
+++ b/src/lab/exp6/Procedure.html
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quizzes.html
index ca3c8544..3c458e14 100644
--- a/src/lab/exp6/Quizzes.html
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
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-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
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-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
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+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
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-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
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-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
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-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 2b248d8b..9a4b496f 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -105,7 +100,7 @@ <h2>Problem 1</h2>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Let us assume we have kept weight D on left pan. From amongst the N weights you can choose to keep some weights on left side and some weights on right side and we may not use some weights at all. Lets say we keep a total weight of w1 on left side and w2+D on right pan, then for balancing w1=w2+D.We keep track the difference between the two pans and if at any stage the difference of weights between two pans is 0 we report yes. Consider the i<sup>th </sup>weight and suppose the current difference between left pan and right pan is x. If x is 0 then yes we donot choose any weight and thus return 1.
@@ -113,34 +108,34 @@ <h2>Problem 2</h2>
 <p>
 Otherwise we have three options
 </p>
-<br/>
+<br>
 <p>
 <b>Option1:</b>
 
 Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right pan becomes x - weight[i].
-<br/>
+<br>
 <b>Option2:</b>
 Put the i<sup>th</sup> weight on left pan.In which case the difference between left and right pan becomes x + weight[i].
-<br/>
+<br>
 <b>Option3:</b>
 Donot put the i<sup>th</sup> weight on either pan.In which case the difference between left and right pan remains x.
-<br/><br/></p>
+<br><br></p>
 <p>
-<br/>
+<br>
 This gives the following  <b> Recursive Function : </b>
-<br/></p>
+<br></p>
 <p>
-Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br/>
-w[i],w[i+1],...,w[n-1].<br/>
-Obviously, F(i,0) is 1, Otherwise<br/>
-F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br/>
-
-F(i+1,x) corresponds to Option3.<br/>
-F(i+1,x-w[i]) corresponds to Option1.<br/>
-F(i+1,x+w[i]) corresponds to Option2.<br/>
-<br/><br/><br/><br/><br/><br/><br/></p>
+Let F(i,x) denotes whether it is possible to obtain a difference of x using the weights<br>
+w[i],w[i+1],...,w[n-1].<br>
+Obviously, F(i,0) is 1, Otherwise<br>
+F(i,x) = F(i+1,x)||F(i+1,x-w[i])||F(i+1,x+w[i]);<br>
+
+F(i+1,x) corresponds to Option3.<br>
+F(i+1,x-w[i]) corresponds to Option1.<br>
+F(i+1,x+w[i]) corresponds to Option2.<br>
+<br><br><br><br><br><br><br></p>
 <p align="right"></p>
-<br/><br/></div>						</div>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp6/default.html b/src/lab/exp6/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp6/default.html
+++ b/src/lab/exp6/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp6/edit_area/plugins/charmap/popup.html b/src/lab/exp6/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp6/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp6/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp6/furtherReadings.html b/src/lab/exp6/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp6/furtherReadings.html
+++ b/src/lab/exp6/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp6/lab.html b/src/lab/exp6/lab.html
index c465dba7..68cf53ef 100755
--- a/src/lab/exp6/lab.html
+++ b/src/lab/exp6/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,44 +220,44 @@ <h1> Recursion </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp6/lab_test.html b/src/lab/exp6/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp6/lab_test.html
+++ b/src/lab/exp6/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp6/objective.html b/src/lab/exp6/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp6/objective.html
+++ b/src/lab/exp6/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp6/prob_desc.html b/src/lab/exp6/prob_desc.html
index a910141f..aed28dcc 100755
--- a/src/lab/exp6/prob_desc.html
+++ b/src/lab/exp6/prob_desc.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 <ol>
@@ -18,39 +13,39 @@
 					You own a set of N different weights, weighing 1, 2, 4, ..., 2<sup>N</sup>−1 units of mass respectively. Determine
 				how many possible ways there are of placing some weights on the sides of the scales, so as to balance
 					them (put them in a state of equilibrium). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 				The input line contains two integers: N W, where N denotes the number of weights and W represents the weight to be placed on the left side.
 
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 				Output must be a single integer denoting the number ways in which one can balance the weight W by placing
-				weights on any side<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 4<br/>
-						Output: 3 <br/>
-						Input: 5 10<br/>
-						Output: 14 <br/>
-						<hr/>
+				weights on any side<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 2 4<br>
+						Output: 3 <br>
+						Input: 5 10<br>
+						Output: 14 <br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
 						<li><h2>Problem 2:</h2>
 Given a weighing pan, n weights and a destination weight D, print “YES� or “NO� depending whether
 you can weight D using other weights given.
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 						 Input begins with numbers of weights n, then n values
 denoting mass of each weight and then in the end destination weight D. 
-						<hr/>
-						<center><b>Output Specification</b></center><br/>
+						<hr>
+						<center><b>Output Specification</b></center><br>
 					As the output, print “YES� if it is possible to weight D, otherwise “NO�
-						<hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input:  3 1 3 4 2<br/>
-						Output: YES<br/>
-						Input: 2 1 3 5 <br/>
-						Output: NO <br/>
+						<hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input:  3 1 3 4 2<br>
+						Output: YES<br>
+						Input: 2 1 3 5 <br>
+						Output: NO <br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp6/quiz.html b/src/lab/exp6/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp6/quiz.html
+++ b/src/lab/exp6/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp6/test.html b/src/lab/exp6/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp6/test.html
+++ b/src/lab/exp6/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp6/theory.html b/src/lab/exp6/theory.html
index 4c2e7e9b..85e0e25e 100755
--- a/src/lab/exp6/theory.html
+++ b/src/lab/exp6/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -52,7 +47,7 @@ <h2>Theory</h2>
 	current difference between left pan and right pan is x.
 	If x is 0 then yes we donot choose any weight and thus return 1.
 	Otherwise we have three options
-	<br/>
+	<br>
 	<h5>Option1:</h5>
 		Put the i<sup>th</sup> weight on right pan.In which case the difference between left and right
 		pan becomes x - weight[i].
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index 90553306..7f5f1072 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index c8b6c3de..0162fb8b 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -82,14 +77,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index 7d2ebc6d..475bfe8b 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index c05fcc26..f6f6d500 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	-&gt;scan the two integers
 	    in the form of the strings
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index 2f3fced1..f5e1a765 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index c2fe8177..de713ba0 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 
 main(){
 
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index d930726a..cd9dc5a2 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 main(){
 	char s1[51],s2[51];
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index 69c79172..d52aeab4 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;The square root must 
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index 194ee180..fd85cb1a 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;The square root must 
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index e718b207..3aea8a90 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index 2f8f1e02..eaa5437c 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 3d7eb3d1..63f745fe 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,61 +95,61 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 Let us consider the task of representing very large numbers in C. As we know we cannot store an intger of maximum value 2<sup>63</sup>-1 and minimum value -2<sup>63 </sup>sing a long long data type in C. But how do we represent numbers which are not in this range, say for example 10<sup>50</sup>.In one of the problems we ask you to do this and explain how it is done usually.
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p>
 The task is to accomplish addition of two large positive numbers
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 There will be two positive integers (&lt; 10^50) separated by a space.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Output must contain a single number representing the sum of the two integers
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 323289329329392893 3283928392839283928932329<br/>
-Output:3283928716128613258325222<br/>
-Input: 10 99<br/>
-Output: 109<br/>
+Input: 323289329329392893 3283928392839283928932329<br>
+Output:3283928716128613258325222<br>
+Input: 10 99<br>
+Output: 109<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
 <p> 
 Find the square root of a positive integer using binary search.
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input will contain a single positive integer N input from keyboard, lesser than 10^9.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Print the square root of the number upto 4 decimal places. A difference upto 0.001 from the the judges solution will be accepted as correct.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 5<br/>
-Output: 2.2361<br/>
-Input: 25<br/>
-Output: 5.0000<br/>
+Input: 5<br>
+Output: 2.2361<br>
+Input: 25<br>
+Output: 5.0000<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index 58c69414..3d4b3376 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 0b59e5ff..f1016970 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
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+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index 171fea86..8e71e013 100644
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quizzes.html
index 3f6591a9..1e931fbe 100644
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@@ -1,31 +1,26 @@
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
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+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
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-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
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-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
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-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
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-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="e
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index e0c47ba1..e6c943ee 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,26 +96,26 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 If numbers are to big to fit into standard data types, then we can use strings to store the number. In this case, addition of two number would require doing digit by digit addition along with required carry over getting transferred to the next higher order cell. Lets suppose that the longer of two of the input numbers is of length L. Then the size of the result would be at maximum L+1. Now, for doing addition, you need to place two separate indices at the end of the two numbers annd do an addition of the two digits there. Beware that the two digits are stored in character format, so subtract 10 from each of them before adding them. If this addition results in a number greater than 10, then write down the unit digit of the result in right most cell of the result string and note down the carry forward. If the result of the addition is less than 10 then then no need to worry about the carry forward. Now repeat this process by having moved all the three indices one place to the left, and keep repeating till the longer of the two numbers is traversed. If one of the input number runs out of digits then assume it to be supplying 0. Finally, output the result string on the screen.
 
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 A number x is said to be a square root of N if x*x=N.Thus is it quite obvious that the square root a positive integer &gt; 1 lies in between [1 N]. Suppose P is a number such that P*P &gt; N then the result must be in the interval [1 P-1] oterwise if P*P &lt; N then the result lies in [P+1 N]. We use this idea to find the square root of a positive integer. Suppose we know that the square root lies in between (start,end).If mid = (start+end)/2.0, depending upon the value of mid*mid-N we chose either (mid+1,end) or (start,mid-1) as our next search interval or conclude that mid is the square root of N.While coding do take care of the fact of precision since mid*mid may not be exactly equal N.
-<br/>
-<br/></p>
+<br>
+<br></p>
 <h3>Time complexity</h3>
-<br/>
+<br>
 <p>
 If you analyze the number of operations it takes this function to run it is easy to see that it will take logN (logN to base 2) operations. At every step of the search we chose either (start,mid-1) or (mid+1,end) which means the interval size gets reduced by half. Initially the range is N, in the next step it will become N/2, then N/4, and so after x steps the search range will be N/(2^x) which will be 1 when x is logN. So, the number of iterations is log(N).
 </p>
 <p align="right"></p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp7/default.html b/src/lab/exp7/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp7/default.html
+++ b/src/lab/exp7/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp7/edit_area/plugins/charmap/popup.html b/src/lab/exp7/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp7/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp7/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp7/furtherReadings.html b/src/lab/exp7/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp7/furtherReadings.html
+++ b/src/lab/exp7/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp7/lab.html b/src/lab/exp7/lab.html
index 83006b26..7e458163 100755
--- a/src/lab/exp7/lab.html
+++ b/src/lab/exp7/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,45 +220,45 @@ <h1>  Advanced Atrihmatic </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp7/lab_test.html b/src/lab/exp7/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp7/lab_test.html
+++ b/src/lab/exp7/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp7/objective.html b/src/lab/exp7/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp7/objective.html
+++ b/src/lab/exp7/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp7/prob_desc.html b/src/lab/exp7/prob_desc.html
index 9bc4062e..7c2656ae 100755
--- a/src/lab/exp7/prob_desc.html
+++ b/src/lab/exp7/prob_desc.html
@@ -1,46 +1,41 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 				<div id="content">
 				<ol>
-	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+	<li> <h2>Problem 1:</h2>The task is to accomplish addition of two large positive numbers <br><br><hr>
+						<center><b>Input Specification</b></center><br>
 				There will be two positive integers (&lt; 10^50) separated by a space.
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 						Output must contain a single number representing the sum of the two integers
-						<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 323289329329392893 3283928392839283928932329<br/>
-						Output:3283928716128613258325222<br/>
-						Input: 10 99<br/>
-						Output: 109<br/>
-						<hr/>
+						<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 323289329329392893 3283928392839283928932329<br>
+						Output:3283928716128613258325222<br>
+						Input: 10 99<br>
+						Output: 109<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
 						<li><h2>Problem 2:</h2>
 					Find the square root of a positive integer using binary search
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 					Print the square root of the number upto 4 decimal places . A difference upto 0.001 from the 
-					the judges solution will be accepted as correct <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2.2361<br/>
-						Input: 25<br/>
-						Output: 5.0000<br/>
+					the judges solution will be accepted as correct <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2.2361<br>
+						Input: 25<br>
+						Output: 5.0000<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp7/quiz.html b/src/lab/exp7/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp7/quiz.html
+++ b/src/lab/exp7/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp7/test.html b/src/lab/exp7/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp7/test.html
+++ b/src/lab/exp7/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp7/theory.html b/src/lab/exp7/theory.html
index 0ea38606..91e080fb 100755
--- a/src/lab/exp7/theory.html
+++ b/src/lab/exp7/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index d9f5ed7a..b42fc55a 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index 52ec3baf..d2dc7a18 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 95b2ee6b..2fba9c0d 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
+++ b/src/lab/exp8/Hints1/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
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diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index 2ace9352..61ff1240 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 	-&gt;declare and scan N
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index a694595a..99ccf521 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index 7e5cff41..9abb5856 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 	-&gt;termination condition
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index c4338716..31431d8d 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
 	return *((int *)a)&gt;*((int *)b);
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index b1512d5d..14093a6b 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index 3ebdfc31..46f79f94 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index 30613205..cae45253 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
 main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index af961b78..88a070c7 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 main(){
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index b894bf33..18a3233e 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,65 +95,65 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 Searching and Sorting are very important areas in computer science. Efficient sorting algorithms are required for optimizing the use of other algorithms that require sorted lists to work correctly, for example to do binary search sorting is required.We present two problems here based on variant of binary search and sorting. Hope you will appreciate them.
 </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
-<br/>
+<br>
 <p> 
 You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this problem we ask you to find out the number of invalid triangles formed from these set of numbers. The degenerate traiangles are considered to be valid traiangles.
 
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
 are separated by spaces and each number is &gt; 0 and &lt; 10<sup>6</sup>.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 Print the number of invalid traingles that can be formed.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: 5 <br/>
-1 2 3 4 10<br/>
-Output: 7 <br/>
-<br/></p>
+Input: 5 <br>
+1 2 3 4 10<br>
+Output: 7 <br>
+<br></p>
 <p align="right"></p>
-<br/><hr/>
-<br/>
+<br><hr>
+<br>
 <h2>Problem 2:</h2>
-<br/>
+<br>
 <p> 
 Given a String and a character set we need to find out the length of the
 smallest substring which contains all the characters of the set.
 
 </p>
-<br/><hr/>
-<p><b>Input Specification</b></p><br/>
+<br><hr>
+<p><b>Input Specification</b></p><br>
 <p>
 The input contains a string(length&lt;=10<sup>5</sup>) made up of small letters from english language followed by number of characters N(&lt; 26) and then N chracters in the next line follow separated by spaces.
 </p>
-<br/><hr/>
-<p><b>Output Specification</b></p><br/>
+<br><hr>
+<p><b>Output Specification</b></p><br>
 <p>
 The output must contain the length of the smallest substring which contains
 all the characters from the character set. If no such substring exists report -1.
 </p>
-<br/><hr/>
-<p><b>Sample Input and Output</b></p><br/>
+<br><hr>
+<p><b>Sample Input and Output</b></p><br>
 <p>
-Input: applelooksred 3 e a p<br/>
+Input: applelooksred 3 e a p<br>
 Output: 5
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index fd51b0eb..5ff90a72 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 7c5fb402..d4d92944 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index e365ef72..e52d442d 100644
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quizzes.html
index 05a79cb9..9cd43107 100644
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
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-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
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-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
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-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
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-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
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 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
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-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id=
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 44508754..b567617b 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -106,13 +101,13 @@ <h2>Problem 1</h2>
 
 </p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
 <p>
 Consider the given string. We need to find the smallest substring which contains all the characters of the given set. Any substring which qualifies has to end with some  character.For each index in the input string lets find out how much we have to extend from that point to the left so that we get all the characters in the input set. Lets say we are scanning the string from the left and we know the latest occurrences of the characters of input set in the input string, say they are stored in an array by name pos[]. From the i<sup> th</sup> character we need to extend to the minimum value in the pos[] array so that we get all the characters. For each index i we do this and report the minimum length.
 
 </p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp8/default.html b/src/lab/exp8/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp8/default.html
+++ b/src/lab/exp8/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp8/edit_area/plugins/charmap/popup.html b/src/lab/exp8/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp8/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp8/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp8/furtherReadings.html b/src/lab/exp8/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp8/furtherReadings.html
+++ b/src/lab/exp8/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp8/lab.html b/src/lab/exp8/lab.html
index bec3f72a..4980d49c 100755
--- a/src/lab/exp8/lab.html
+++ b/src/lab/exp8/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,45 +220,45 @@ <h1>  Searching and Sorting </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp8/lab_test.html b/src/lab/exp8/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp8/lab_test.html
+++ b/src/lab/exp8/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp8/objective.html b/src/lab/exp8/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp8/objective.html
+++ b/src/lab/exp8/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp8/prob_desc.html b/src/lab/exp8/prob_desc.html
index 13b2d2b0..95ee0a0f 100755
--- a/src/lab/exp8/prob_desc.html
+++ b/src/lab/exp8/prob_desc.html
@@ -1,38 +1,33 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 							<li> <h2>Problem 1:</h2>
 You are given some set of numbers. By choosing three numbers we may be able to construct a triangle. In this
 problem we ask you to find out the number of invalid triangles formed from these set of numbers.The degenerate traiangles 
 are considered to be valid traiangles
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 Input contains N(&lt;= 1000), followed by N numbers in the next line.The numbers
 are separated by spaces and each number is &gt; 0 and &lt; 10^6
-						<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 Print the number of invalid traingles that can be formed.
 						
-		<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5 <br/>
-							1 2 3 4 10<br/>
-						Output:<br/>
+		<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5 <br>
+							1 2 3 4 10<br>
+						Output:<br>
 						
 
-						<br/>
-						<hr/>
+						<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
@@ -40,24 +35,24 @@
 Given a String and a character set we need to find out the length of the 
 smallest substring which contains all the characters of the set.
 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 The input contains a string(length&lt;=10^5) made up of small letters from english language
 followed by number of characters N(&lt; 26) and then N chracters in the next line 
 follow separated by spaces.
 	
-<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
+<br><br><hr>
+						<center><b>Output Specification</b></center><br>
 The output must contain the length of the smallest substring which contains 
 all the characters from the character set. If no such substring exists report -1.
 
-						<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
+						<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
 						Input: applelooksred 3 e a p
-						<br/>
+						<br>
 						Output: 5
-						<br/>
-						<br/>
+						<br>
+						<br>
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
 						
diff --git a/src/lab/exp8/quiz.html b/src/lab/exp8/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp8/quiz.html
+++ b/src/lab/exp8/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp8/test.html b/src/lab/exp8/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp8/test.html
+++ b/src/lab/exp8/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp8/theory.html b/src/lab/exp8/theory.html
index c50289e4..7f2e4e4b 100755
--- a/src/lab/exp8/theory.html
+++ b/src/lab/exp8/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index da475c73..b19623b0 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 783244a6..9cff77a1 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
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 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 6cc44e9c..e6982faf 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index 611ee8c6..a93a4aa0 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -1,5 +1 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
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\ No newline at end of file
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index bd1928f7..98bb7bdf 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index 0c1a827d..d0cc089c 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index 8628e5fd..c9e7ecae 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 52512e55..590b313f 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index d4942e24..2de51afa 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -1,6 +1,2 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index 8a7b1a6c..7be2bbd1 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index aaea1320..f1e165e4 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index 03c49d4a..c18fb621 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 -&gt;termination 
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index c3816712..a0e6a457 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -1,8 +1,4 @@
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index 9cc48a2f..9e8dc6d5 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -100,12 +95,12 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-1-content">
-<br/>
+<br>
 <p> 
 		  Permutations occur, in more or less prominent ways, in almost every domain of mathematics. They often arise when different orderings on certain finite sets are considered, possibly only because one wants to ignore such orderings and needs to know how many configurations are thus identified. For similar reasons permutations arise in the study of sorting algorithms in computer science. Here we present two problems based on permutations and combinations.
 
 		  </p>
-<br/>
+<br>
 <h2>Problem 1:</h2>
 <p>  
 
@@ -113,68 +108,68 @@ <h2>Problem 1:</h2>
 			  ways you can balance that Sum using one or all weights. If there is no combination possible, print -1.
 
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Input Specification</b><br/>
+<b>Input Specification</b><br>
 </p>
 <p>
 			  Input contains 2 lines . First line contains N(&lt; 10) denoting the number of weights. The next line
 			  contains N weights (&lt;=wt&lt;=100) followed by a Sum(&lt;=100) which we need to balance.
 
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Output Specification</b><br/>
+<b>Output Specification</b><br>
 </p>
 <p>
 
 			  Output must be a integer. Print -1 in case there is no way in which we can achieve the value Sum by using some weights otherwise print the number of ways in which we can attain the weight Sum. Please note that if Sum S can be attained by keeping some weights a1,a2,a3,.. on left side and p1,p2,.. on the right then keeping p1,p2,... on the left and a1,a2,.. on right will also result in achieving sum S, but it has to be counted only once not twice in the solution.
 
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Sample Input and Output</b><br/>
+<b>Sample Input and Output</b><br>
 </p>
 <p>
-			  Input: 3<br/> 
-			  1 2 3 56 <br/>
-			  Output:-1<br/>
-<br/></p><hr/>
-<br/>
-<br/><p></p>
+			  Input: 3<br> 
+			  1 2 3 56 <br>
+			  Output:-1<br>
+<br></p><hr>
+<br>
+<br><p></p>
 <p align="right"></p>
 <h2>Problem 2:</h2>
 <p> 
 			  Given N followed by N weights, see how many different ways, one can generate sets of balancing weights. The weight on the right side of the pan must be a single weight.Please note that we cannot place multiple weights on right side.
 
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Input Specification</b><br/>
+<b>Input Specification</b><br>
 </p><p>
 </p><p>
 			  Input contains a integer N followed by N weights separated by spaces. The value of N is &lt;=10 and each weight W &lt;=100.
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Output Specification</b><br/>
+<b>Output Specification</b><br>
 </p>
 <p>
 			  Output must be the number of ways we can generate sets of balancing weights according to the given restriction.
 			  </p>
-<br/><hr/>
+<br><hr>
 <p>
-<b>Sample Input and Output</b><br/>
+<b>Sample Input and Output</b><br>
 </p>
 <p>
-			  Input: 3 1 2 3<br/>
-			  Output:1<br/>
-			  Input: 5 1 2 3 4 5<br/>
-			  Output: 4<br/>
+			  Input: 3 1 2 3<br>
+			  Output:1<br>
+			  Input: 5 1 2 3 4 5<br>
+			  Output: 4<br>
 </p>
 <p align="right"></p>
-<br/><hr/>
-<br/><br/></div>						</div>
+<br><hr>
+<br><br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 38141300..09b0766d 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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@@ -43,7 +38,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 1eaf91e7..76a80c96 100644
--- a/src/lab/exp9/Objective.html
+++ b/src/lab/exp9/Objective.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
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+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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 <div id="top">
 	<header>
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
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@@ -84,14 +79,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index 799990fa..49334f35 100644
--- a/src/lab/exp9/Procedure.html
+++ b/src/lab/exp9/Procedure.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
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     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
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+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
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+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
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+    <link href="../css/style.css" rel="stylesheet">
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+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
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@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index dd8db980..c0ed8769 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -1,31 +1,26 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
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+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     <script src="quiz.js" type="text/javascript"></script>
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 
@@ -60,7 +55,7 @@
 
 
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-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
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@@ -74,7 +69,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -115,14 +110,14 @@
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 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -200,110 +195,110 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 <div class="qheader">
 1. The execution of a loop typically starts with: </div>
 <div class="qselections">
-<input name="question1" type="radio" value="a"/>a) initialization statements<br/>
-<input name="question1" type="radio" value="b"/>b) Loop body<br/>
-<input name="question1" type="radio" value="c"/>c) test condition<br/>
-<input name="question1" type="radio" value="d"/>d) update statements<br/>
+<input name="question1" type="radio" value="a">a) initialization statements<br>
+<input name="question1" type="radio" value="b">b) Loop body<br>
+<input name="question1" type="radio" value="c">c) test condition<br>
+<input name="question1" type="radio" value="d">d) update statements<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 2) The break statement is used to exit from:</div>
 <div class="qselections">
-<input name="question2" type="radio" value="a"/>a) an if statement<br/>
-<input name="question2" type="radio" value="b"/>b) a for loop<br/>
-<input name="question2" type="radio" value="c"/>c) a program<br/>
-<input name="question2" type="radio" value="d"/>d) the main( ) function<br/>
+<input name="question2" type="radio" value="a">a) an if statement<br>
+<input name="question2" type="radio" value="b">b) a for loop<br>
+<input name="question2" type="radio" value="c">c) a program<br>
+<input name="question2" type="radio" value="d">d) the main( ) function<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 3) A do-while loop is useful when we want that the statements within the loop must be executed</div>
 <div class="qselections">
-<input name="question3" type="radio" value="a"/>a) only once<br/>
-<input name="question3" type="radio" value="b"/>b) At Least Once<br/>
-<input name="question3" type="radio" value="c"/>c) More than once<br/>
-<input name="question3" type="radio" value="d"/>d) None of the above<br/>
+<input name="question3" type="radio" value="a">a) only once<br>
+<input name="question3" type="radio" value="b">b) At Least Once<br>
+<input name="question3" type="radio" value="c">c) More than once<br>
+<input name="question3" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 4) In what sequence the initialization, testing and execution of body is done in a do-while loop </div>
 <div class="qselections">
-<input name="question4" type="radio" value="a"/>a) Initialization, execution of body, testing<br/>
-<input name="question4" type="radio" value="b"/>b) Execution of body, initialization, testing<br/>
-<input name="question4" type="radio" value="c"/>c) Initialization, testing, execution of body<br/>
-<input name="question4" type="radio" value="d"/>d) None of the above<br/>
+<input name="question4" type="radio" value="a">a) Initialization, execution of body, testing<br>
+<input name="question4" type="radio" value="b">b) Execution of body, initialization, testing<br>
+<input name="question4" type="radio" value="c">c) Initialization, testing, execution of body<br>
+<input name="question4" type="radio" value="d">d) None of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 5) Which looping process checks the test condition at the end of the loop?</div>
 <div class="qselections">
-<input name="question5" type="radio" value="a"/>a) for<br/>
-<input name="question5" type="radio" value="b"/>b) while<br/>
-<input name="question5" type="radio" value="c"/>c) do-while<br/>
-<input name="question5" type="radio" value="d"/>d) No looping peocess check condition at the end<br/>
+<input name="question5" type="radio" value="a">a) for<br>
+<input name="question5" type="radio" value="b">b) while<br>
+<input name="question5" type="radio" value="c">c) do-while<br>
+<input name="question5" type="radio" value="d">d) No looping peocess check condition at the end<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 6) A continue statement causes execution to skip to: </div>
 <div class="qselections">
-<input name="question6" type="radio" value="a"/>a) the end of the program<br/>
-<input name="question6" type="radio" value="b"/>b) the first statement after the loop<br/>
-<input name="question6" type="radio" value="c"/>c) the statement following the continue statement<br/>
-<input name="question6" type="radio" value="d"/>d) the next iteration of the loop<br/>
+<input name="question6" type="radio" value="a">a) the end of the program<br>
+<input name="question6" type="radio" value="b">b) the first statement after the loop<br>
+<input name="question6" type="radio" value="c">c) the statement following the continue statement<br>
+<input name="question6" type="radio" value="d">d) the next iteration of the loop<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 7) The statement  i++;  is equivalent to: </div>
 <div class="qselections">
-<input name="question7" type="radio" value="a"/>a) <code>i = i + i;</code><br/>
-<input name="question7" type="radio" value="b"/>b) <code>i = i + 1;</code><br/>
-<input name="question7" type="radio" value="c"/>c) <code>i = i - 1;</code><br/>
-<input name="question7" type="radio" value="d"/>d) <code> i - - ;</code><br/>
+<input name="question7" type="radio" value="a">a) <code>i = i + i;</code><br>
+<input name="question7" type="radio" value="b">b) <code>i = i + 1;</code><br>
+<input name="question7" type="radio" value="c">c) <code>i = i - 1;</code><br>
+<input name="question7" type="radio" value="d">d) <code> i - - ;</code><br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 8) Another word for "looping" is: </div>
 <div class="qselections">
-<input name="question8" type="radio" value="a"/>a) recapitulation <br/>
-<input name="question8" type="radio" value="b"/>b) tintinabulation <br/>
-<input name="question8" type="radio" value="c"/>c) iteration<br/>
-<input name="question8" type="radio" value="d"/>d) reiteration<br/>
+<input name="question8" type="radio" value="a">a) recapitulation <br>
+<input name="question8" type="radio" value="b">b) tintinabulation <br>
+<input name="question8" type="radio" value="c">c) iteration<br>
+<input name="question8" type="radio" value="d">d) reiteration<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 9) Which looping process is best used when the number of iterations is known?</div>
 <div class="qselections">
-<input name="question9" type="radio" value="a"/>a) for<br/>
-<input name="question9" type="radio" value="b"/>b) while<br/>
-<input name="question9" type="radio" value="c"/>c) do-while<br/>
-<input name="question9" type="radio" value="d"/>d) all of the above<br/>
+<input name="question9" type="radio" value="a">a) for<br>
+<input name="question9" type="radio" value="b">b) while<br>
+<input name="question9" type="radio" value="c">c) do-while<br>
+<input name="question9" type="radio" value="d">d) all of the above<br>
 </div>
 
-<br/>
+<br>
 
 <div class="qheader">
 10) Which of the following is not an infinite loop.</div>
 <div class="qselections">
-<input name="question10" type="radio" value="a"/>a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
-} </code><br/>
-<input name="question10" type="radio" value="b"/>b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="c"/>c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br/>
-<input name="question10" type="radio" value="d"/>d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br/>
+<input name="question10" type="radio" value="a">a) <code>int i = 1 ; while ( 1 ) {  i++ ; 
+} </code><br>
+<input name="question10" type="radio" value="b">b) <code>for( int i =1; i &lt; 10 ; i--)   printf("Hello World");</code><br>
+<input name="question10" type="radio" value="c">c) <code>for(int i =1; i&lt;100; i++) printf("Hello World");</code><br>
+<input name="question10" type="radio" value="d">d) <code>int i = 0; do{ i-- printf("%d ",i); }while(i&gt;0);</code><br>
 
 </div>
 
@@ -311,7 +306,7 @@ <h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experimen
 
 <form>
 <div align="center">
-<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"/> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"/></div>
+<input name="B1" onclick="gradeit()" type="button" value="Grade Me!"> <input name="B2" onclick="document.myquiz.reset()" type="button" value="Reset"></div>
 </form>
 
 <p></p>
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 9b52c854..4f6856bb 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
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-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="../images/favicon.ico" rel="shortcut icon"/>
+     <link href="../images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="../css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="../css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="../vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="../vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="../vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="../css/style.css" rel="stylesheet"/>
+    <link href="../css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67020197-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&gt;&lt;/iframe&gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -84,14 +79,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
@@ -101,15 +96,15 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							<!--edit -->
 <h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
-<br/>
+<br>
 <p>
 	Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the weight(w) as the first weights one by one, also taking care the the total weight(S) is not greater than reqired weight W. Those weights which make the total weight(S) greater than W are exluded from the list of avaliable weights for the next recursive. Now we only have to solve the same problem for a simpler case to get the complete solution, i.e., solving the same problem for the remaining weight, W-w, and available pool of weights now also does not have w. If accumulated weight is equal to w, then we increment the counter. If at any time, the pool of remaining weights is exhausted, then that attempt is aborted. So, our recursion function would be needing 2 variables, one containing the list of available weights and the other signifying remaining weight to be accrued.
 
 	</p>
 <p align="right"></p>
-<br/>
+<br>
 <h2>Problem 2</h2>
-<br/>
+<br>
 <p>
 	For each weight in the input we keep it on right pan and try using other weights to balance it. Let us say we have kept i<sup>th</sup> weight on the right pan, out task is now to keep weights on left side of the pan so that the sum of the weights on left side of the pan is equal to the weight on the right side,i.e weight[i]. For each weight W[k], we can keep it either on left pan or we donot to keep it at all. Make sure to disregard the weight when k is equal to i because that weight is already on right side.
 	</p>
@@ -118,15 +113,15 @@ <h3>Recursive formulation </h3>
 	Let F(index,i,S) denotes the number of ways in which we can obtain weight[i] using weights from weight[index], weight[index+1], weight[index+2],..., weight[n-1] and currently because of choosing some weights from weight[0], weight[1],..., weight[index-1] the sum of the weights has become S. So we need to achieve weight[i]-S by choosing some weights from weight[index], weight[index+1],..., weight[n-1].
 	</p>
 <p>
-	A pseudo code would look like: <br/>
+	A pseudo code would look like: <br>
 
-	F(index,i,S) = F(index+1,i,S)   If index=i <br/>
-	= 1             If index=N and S=weight[i] <br/>
-	= 0             If index=N and S!=weight[i]<br/>
-	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br/>
-<br/><br/></p>
+	F(index,i,S) = F(index+1,i,S)   If index=i <br>
+	= 1             If index=N and S=weight[i] <br>
+	= 0             If index=N and S!=weight[i]<br>
+	= F(index+1,i,S+weight[index])+F(index+1,i,S) otherwise <br>
+<br><br></p>
 <p align="right"></p>
-<br/></div>						</div>
+<br></div>						</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp9/default.html b/src/lab/exp9/default.html
index 270995af..dbd32aac 100644
--- a/src/lab/exp9/default.html
+++ b/src/lab/exp9/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/exp9/edit_area/plugins/charmap/popup.html b/src/lab/exp9/edit_area/plugins/charmap/popup.html
index 644bcbc3..b0f1a556 100755
--- a/src/lab/exp9/edit_area/plugins/charmap/popup.html
+++ b/src/lab/exp9/edit_area/plugins/charmap/popup.html
@@ -1,16 +1,11 @@
-<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
-<html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!--?xml version="1.0" encoding="UTF-8"?--><!DOCTYPE html><html xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 <title>{$charmap_title}</title>
-<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
-<link href="css/charmap.css" rel="stylesheet" type="text/css"/>
+<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
+<link href="css/charmap.css" rel="stylesheet" type="text/css">
 <script language="Javascript" src="jscripts/map.js" type="text/javascript">
 </script>
 </head>
-<body onload="map_load()"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body onload="map_load()"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div class="preview" id="preview_code"></div>
 <div class="preview" id="preview_char"></div>
 <h1>{$charmap_title}:</h1>
diff --git a/src/lab/exp9/furtherReadings.html b/src/lab/exp9/furtherReadings.html
index 56c6df2e..1d7fa8b9 100755
--- a/src/lab/exp9/furtherReadings.html
+++ b/src/lab/exp9/furtherReadings.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp9/lab.html b/src/lab/exp9/lab.html
index b8ff63d5..28649a52 100755
--- a/src/lab/exp9/lab.html
+++ b/src/lab/exp9/lab.html
@@ -1,13 +1,8 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
-		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
+		<link href="thickbox/thickbox.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 		<script src="jquery.js" type="text/javascript"></script>
 		<script src="thickbox/thickbox.js" type="text/javascript"></script>
@@ -202,7 +197,7 @@
 </script>
 <!-- Google Analytics script ends here -->
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -225,45 +220,45 @@ <h1> Permutation </h1>
 <span>
 <form action="upload.php" enctype="multipart/form-data" id="file_upload_form" method="post" name="file_upload_form">
 CHOOSE FILE TO LOAD: 
-<input id="file" name="file" size="20" type="file"/> 
-<input name="action" style="display:none;" type="submit" value="Upload"/><br/>
-<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif"/>) </span>
+<input id="file" name="file" size="20" type="file">&nbsp;
+<input name="action" style="display:none;" type="submit" value="Upload"><br>
+<span style="font-size:12px;">After browsing the file, click on load button (Last button in the menu bar of edit area, looks like <img src="load.gif">) </span>
 <iframe id="upload_target" name="upload_target" src="" style="width:0;height:0;border:0px solid #fff;"></iframe>
 </form>
 </span>
 
-<hr/>
+<hr>
 <p>Or if you want to write a programme instead of browsing file, please use below edit area to write your code</p>
 
 <form action="judge.py" method="get" name="judge">
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 400px; width: 100%;">		</textarea>
 	</fieldset>
-Language                              ProblemNo
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
 
-<br/>
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"/></a>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
- <input id="highHint_id" name="highHint" type="hidden" value="0"/>
+<a class="thickbox" href="prob_desc.html?height=500&amp;width=650"><img height="20px" src="images/info.jpg" width="20px"></a>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
+ <input id="highHint_id" name="highHint" type="hidden" value="0">
 </form></div> <!--contentLeft -->
 
 <div id="contentRight">
-   <h4> HINTS </h4><br/>
+   <h4> HINTS </h4><br>
    <div id="hintBox">
 
    </div>
diff --git a/src/lab/exp9/lab_test.html b/src/lab/exp9/lab_test.html
index 039b18d6..42574180 100755
--- a/src/lab/exp9/lab_test.html
+++ b/src/lab/exp9/lab_test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -84,7 +79,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -118,25 +113,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 50%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input name="SubmissionID" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input name="SubmissionID" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 				</div>
 			</article>
 			<div id="footer">
diff --git a/src/lab/exp9/objective.html b/src/lab/exp9/objective.html
index 533e89e8..87c8513c 100755
--- a/src/lab/exp9/objective.html
+++ b/src/lab/exp9/objective.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/exp9/prob_desc.html b/src/lab/exp9/prob_desc.html
index dce75c3d..40f67299 100755
--- a/src/lab/exp9/prob_desc.html
+++ b/src/lab/exp9/prob_desc.html
@@ -1,55 +1,50 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 				<div id="content">
 	<ol>
-						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br/><br/>
+						<li> <h2>Problem 1:</h2>Given a list of n distinct numbers (where n &lt;= 1000), find the length of the longest monotone decreasing subsequence.<br><br>
 Definition : A monotone decreasing subsequence is a sequence of numbers (contiguously placed in the list) which
 						are strictly decreasing from left to right. For example, if we have the series �2 1 9 8 10 7 5 4 3 1 10�,
 						then the subsequence �10 7 5 4 3 1� is contiguously arranged and monotonically decreasing. Thus the
 						answer to be printed out for the length of � 10 7 5 4 3 1� which is 6. Note that the sequence �9 8 7 5
 						4 3 1� is not a subsequence we are looking for as the numbers are not contiguous placed in the list.
 
-					<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-					Print the length of the longest continuous decreasing subsequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 2 1 9 8 10 7 5 4 3 1 10 <br/>
-						Output:6<br/>
-						Input: 1 2 3 4 5 6 7 8<br/>
-						Output: 1<br/>
-						<hr/>
+					<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+					Input will contain some positive integers separated by spaces. The number of integers is not specified and the input will be terminated by end of file.Each integer is &lt;= 10^9  and the length of the input sequence is &lt;= 10^7 <br><br><hr>
+						<center><b>Output Specification</b></center><br>
+					Print the length of the longest continuous decreasing subsequence <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 2 1 9 8 10 7 5 4 3 1 10 <br>
+						Output:6<br>
+						Input: 1 2 3 4 5 6 7 8<br>
+						Output: 1<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
 						<li><h2>Problem 2:</h2>Given a set of n distinct numbers, find the length of the longest monotone increasing subsequence. Note that the sequence need not be continuous(Refer: Section 4.7 of Dromey). 
-						<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
+						<br><br><hr>
+						<center><b>Input Specification</b></center><br>
 	Input will contain two lines. The first line contains the number of integers in the sequence , N(&lt;=1000) and the next line contains N 
 	positive integers (each &lt;=10^9).
-			<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-	Print the length of the longest increasing subsequence of the given input sequence <br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
+			<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+	Print the length of the longest increasing subsequence of the given input sequence <br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
 						Input: 
-						10<br/>
-						1 2 9 4 7 3 11 8 14 6<br/>
-						Output:6<br/>
-						Input: 6 <br/>
-						       1 3 2 10 4 5<br/>
-						Output: 4<br/>
+						10<br>
+						1 2 9 4 7 3 11 8 14 6<br>
+						Output:6<br>
+						Input: 6 <br>
+						       1 3 2 10 4 5<br>
+						Output: 4<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp9/quiz.html b/src/lab/exp9/quiz.html
index 2706fedc..1d7fa8b9 100755
--- a/src/lab/exp9/quiz.html
+++ b/src/lab/exp9/quiz.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
@@ -39,7 +34,7 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 		</nav>
 				<div id="content">
 					<h2>Introduction </h2>
-						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
+						<p>Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br>
 						</p><ol>
 						<li>There are n! different ways of arranging n distinct objects into a sequence, the permutations of those objects.</li>
 						<li>Factorials occur in algebra for various reasons, such as via the already mentioned coefficients of the binomial formula, or through averaging over permutations for symmetrization of certain operations.</li>
@@ -47,32 +42,32 @@ <h2>Introduction </h2>
 						<li>Factorials are also used extensively in probability theory.</li>
 						<li>Factorials can be useful to facilitate expression manipulation.</li>
 						</ol>
-						<br/>Here we present two problems based on factorials.<br/>
+						<br>Here we present two problems based on factorials.<br>
 						<ol>
-						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of digits in the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:2<br/>
-						Input: 52<br/>
-						Output: 68<br/>
-						<hr/>
+						<li> <h2>Problem 1:</h2>Given a positive integer, find the number of digits in the factorial of the number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 1000000.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of digits in the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:2<br>
+						Input: 52<br>
+						Output: 68<br>
+						<hr>
 						</li>
 						<!--<li><iframe src="Problem1.html" width="100%" scrolling="auto" seamless></iframe>
 						</li>-->
-						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br/><br/><hr/>
-						<center><b>Input Specification</b></center><br/>
-						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br/><br/><hr/>
-						<center><b>Output Specification</b></center><br/>
-						Output must be the number of zeroes at the end of the factorial of the given number.<br/><br/><hr/>
-						<center><b>Sample Input and Output</b></center><br/>
-						Input: 5<br/>
-						Output:1<br/>
-						Input: 25<br/>
-						Output: 6<br/>
+						<li><h2>Problem 2:</h2>Find the number of zeroes at the end of factorial of a number.<br><br><hr>
+						<center><b>Input Specification</b></center><br>
+						Input will contain a single positive integer N input from keyboard, lesser than 10^9.<br><br><hr>
+						<center><b>Output Specification</b></center><br>
+						Output must be the number of zeroes at the end of the factorial of the given number.<br><br><hr>
+						<center><b>Sample Input and Output</b></center><br>
+						Input: 5<br>
+						Output:1<br>
+						Input: 25<br>
+						Output: 6<br>
 
 						<!--<iframe src="test.txt" width=auto height=auto seamless></iframe>-->
 						<p></p> 
diff --git a/src/lab/exp9/test.html b/src/lab/exp9/test.html
index ff26f1e9..c84d68ff 100755
--- a/src/lab/exp9/test.html
+++ b/src/lab/exp9/test.html
@@ -1,12 +1,7 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
-<html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-	<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html xml:lang="fr" xmlns="http://www.w3.org/1999/xhtml"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+	<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 	<title>EditArea - the code editor in a textarea</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	<script language="Javascript" src="edit_area/edit_area_full.js" type="text/javascript"></script>
 	<script language="Javascript" type="text/javascript">
@@ -121,7 +116,7 @@
 	
 	</script>
 </head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <form action="judge.py" method="get">
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
@@ -156,25 +151,25 @@ <h1> <a href="index.html"> Virtual Labs </a> </h1>
 <fieldset>
 		<textarea id="editArea" name="code" style="height: 250px; width: 100%;">		</textarea>
 	</fieldset>
-<br/>
-Language                              ProblemNo
-<br/>
+<br>
+Language &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;&nbsp;&nbsp;ProblemNo
+<br>
 <select id="codeId" name="language">
 <option value="c"> C (gcc 4.3.2) </option>
 <option value="cpp"> C++ (g++ 4.3.2) </option>
 </select>
-                    
-    
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp;
+&nbsp;&nbsp;&nbsp;&nbsp;
 
 <select id="probId" name="codeId">
 <option value="Problem1"> 1  </option>
 <option value="Problem2"> 2  </option>
 </select>
-<input id="hintCount" name="hintC" type="hidden" value="0"/>
-               
- <input name="type" type="submit" value="Compile"/>
-       
- <input name="type" type="submit" value="Run"/>
+<input id="hintCount" name="hintC" type="hidden" value="0">
+ &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Compile">
+ &nbsp; &nbsp; &nbsp; 
+ <input name="type" type="submit" value="Run">
 
 </div> <!--contentLeft -->
 <div id="contentRight">
diff --git a/src/lab/exp9/theory.html b/src/lab/exp9/theory.html
index 2f48809f..630b16ac 100755
--- a/src/lab/exp9/theory.html
+++ b/src/lab/exp9/theory.html
@@ -1,15 +1,10 @@
-<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-		<meta content="text/html; charset=utf-8" http-equiv="Content-Type"/>
+<!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+		<meta content="text/html; charset=utf-8" http-equiv="Content-Type">
 		<title>OJ</title>
-		<link href="default.css" media="screen" rel="stylesheet" type="text/css"/>
+		<link href="default.css" media="screen" rel="stylesheet" type="text/css">
 		<script src="jqminmax.js" type="text/javascript"></script>
 	</head>
-	<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+	<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 		<header id="site_head">
 		<div class="header_cont"> <!-- 960px header-->
 			<!-- LOGO of the company-->
diff --git a/src/lab/expPh1/default.html b/src/lab/expPh1/default.html
index 3aadd68d..acd7cf8a 100644
--- a/src/lab/expPh1/default.html
+++ b/src/lab/expPh1/default.html
@@ -1,12 +1,7 @@
 <!-- This file default.html has got the default structure of the
 html pages for an experiment. In case we intend to edit it, we
-should edt the content.html file to suit our requirements. --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+should edt the content.html file to suit our requirements. --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> <!-- The Experiment Document Container-->
 
@@ -18,7 +13,7 @@
     <div class="logo" id="experiment-header-logo">
       <!-- Enclose the logo image of your lab or write it in 
       text-->
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -71,7 +66,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -105,7 +100,7 @@
             with <span>periodic motion</span>.
             </p>
 
-          <img alt="pendulum" src="../images/Pendulum.JPG"/>
+          <img alt="pendulum" src="../images/Pendulum.JPG">
         </div>
 
 
@@ -116,7 +111,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -138,8 +133,8 @@
           </p> 
 
           <p>
-          Where,  τ  =  <span>Torque </span>;   I  =  
-          <span>Moment of Inertia</span>;   α  = <span>
+          Where,  �„  =  <span>Torque </span>;   I  =  
+          <span>Moment of Inertia</span>;   α  = <span>
           Angular Velocity</span>. m is mass of the 
           oscillator, l is the length of the <a class="more" href=""> oscillator </a> and theta is initial 
           displacement. The above equation can be rearranged as 
@@ -149,7 +144,7 @@
           If the amplitude of 
           <a class="more" href="">angular displacement</a> is 
           small then we can use the approximation 
-          (sinθ ≈ θ).
+          (sinθ ≈ θ).
           By considering the above approximation, the equation 
           of motion reduces to :
           </p>
@@ -159,8 +154,8 @@
           </p> 
 
           <p>							
-          where, θ(t) is the history of oscillation, 
-          θ<sub>0</sub> is the initial angle, 
+          where, θ(t) is the history of oscillation, 
+          θ<sub>0</sub> is the initial angle, 
           &amp;omega=(g/l)<sup>1/2</sup> is the 
           <a class="more" href=""> natural frequency </a> of 
           the motion.
@@ -173,7 +168,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -201,7 +196,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -210,7 +205,7 @@
 
         <div class="content" id="experiment-article-section-4-content">
           <p>
-            <embed src="PendulumForces.swf"></embed> 
+            <embed src="PendulumForces.swf"> 
           </p>
         </div>
 
@@ -220,7 +215,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -269,7 +264,7 @@ <h3>Observation 1:</h3>
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -282,44 +277,44 @@ <h3>Observation 1:</h3>
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -330,7 +325,7 @@ <h3>Observation 1:</h3>
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -350,7 +345,7 @@ <h3>Observation 1:</h3>
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
@@ -368,7 +363,7 @@ <h3>Observation 1:</h3>
                 tutorials/shm/Q.shm.html">http://www.physics.uoguelph.ca/tutorials/shm/Q.shm.html</a>
               </li> 
               <li>
-                “Dynamics of structures” by Anil K chopra. 
+                “Dynamics of structures� by Anil K chopra. 
               </li> 
               <li>
                 <a href="http://surendranath.tripod.com/Applets/
diff --git a/src/lab/expPh1/newcontenttempalte.html b/src/lab/expPh1/newcontenttempalte.html
index 1e74b7b5..67a664cf 100755
--- a/src/lab/expPh1/newcontenttempalte.html
+++ b/src/lab/expPh1/newcontenttempalte.html
@@ -2,13 +2,8 @@
 the requirements of their lab in particular.--><!-- Add class="default" to include any element as it is
 specified in default.html. 
 Do not include class="default" to the elements that you want to
-edit --><!DOCTYPE html>
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head>
-<body><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;gt;&amp;amp;amp;lt;/iframe&amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+edit --><!DOCTYPE html><html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head>
+<body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 
 <div id="experiment"> 
 
@@ -16,7 +11,7 @@
   
     <div class="logo" id="experiment-header-logo">
      
-      <img src="../images/logo.jpg"/>
+      <img src="../images/logo.jpg">
     </div>
 
     <div class="heading" id="experiment-header-heading">
@@ -58,7 +53,7 @@
           
           <div class="icon" id="experiment-article-section-1-icon">
 	    <!-- Enclose the icon image of your lab -->
-	    <img src="../images/introduction.jpg"/>
+	    <img src="../images/introduction.jpg">
 	  </div>	
           
           <!-- The heading for the section can be enclosed in a 
@@ -83,7 +78,7 @@
         
         <div class="icon" id="experiment-article-section-2-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/theory.jpg"/>
+	  <img src="../images/theory.jpg">
 	</div>
 				
         <!-- The heading for the section can be enclosed in a 
@@ -104,7 +99,7 @@
         
         <div class="icon" id="experiment-article-section-3-icon">
 	  <!-- Enclose the icon image of your lab. -->
-	  <img src="../images/objective.jpg"/>
+	  <img src="../images/objective.jpg">
 	</div>
      
         <div class="heading" id="experiment-article-section-3-heading">
@@ -127,7 +122,7 @@
 
         <div class="icon" id="experiment-article-section-4-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/simulation.jpg"/>
+	  <img src="../images/simulation.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-4-heading">
@@ -147,7 +142,7 @@
    
         <div class="icon" id="experiment-article-section-5-icon">
 	  <!-- Enclose the icon image of your lab.-->
-	  <img src="../images/manual.jpg"/>
+	  <img src="../images/manual.jpg">
 	</div>
 
         <div class="heading" id="experiment-article-section-5-heading">
@@ -168,7 +163,7 @@
       
           <div class="icon" id="experiment-article-section-6-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/quizzes.jpg"/>
+	    <img src="../images/quizzes.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-6-heading">
@@ -181,44 +176,44 @@
               
               <b>Q1.</b> 
               Time taken for one complete oscillation 
-              is called Time Period of the oscillator. <br/> 
-              <input id="q1" name="q1" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q1" name="q1" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              is called Time Period of the oscillator. <br> 
+              <input id="q1" name="q1" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q1" name="q1" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q2.</b> 
               Time period of the oscillator is constant for 
               given values of mass, length and initial 
-              conditions.<br/> 
-              <input id="q2" name="q2" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q2" name="q2" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions.<br> 
+              <input id="q2" name="q2" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q2" name="q2" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q3.</b> 
               Value of Time period depends on initial 
-              conditions. <br/> 
-              <input id="q3" name="q3" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q3" name="q3" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              conditions. <br> 
+              <input id="q3" name="q3" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q3" name="q3" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q4.</b> 
-              Value of time period depends on mass. <br/> 
-              <input id="q4" name="q4" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q4" name="q4" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
+              Value of time period depends on mass. <br> 
+              <input id="q4" name="q4" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q4" name="q4" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
               
               <b>Q5.</b> 
               Value of time period depends on length of the 
-              oscillator. <br/> 
-              <input id="q5" name="q5" type="radio" value="1"/> 
-                <font color="green"> True </font> <br/> 
-              <input id="q5" name="q5" type="radio" value="0"/>
-                <font color="red"> False </font> <br/><br/> 
-              <input class="button" type="submit" value="Submit Answers"/>
+              oscillator. <br> 
+              <input id="q5" name="q5" type="radio" value="1"> 
+                <font color="green"> True </font> <br> 
+              <input id="q5" name="q5" type="radio" value="0">
+                <font color="red"> False </font> <br><br> 
+              <input class="button" type="submit" value="Submit Answers">
             </p>
 
           </div>
@@ -229,7 +224,7 @@
 	  
           <div class="icon" id="experiment-article-section-7-icon">
 	    <!-- Enclose the icon image of your lab. -->
-	    <img src="../images/procedure.jpg"/>
+	    <img src="../images/procedure.jpg">
 	  </div>
 	
           <div class="heading" id="experiment-article-section-7-heading">
@@ -260,7 +255,7 @@
    
           <div class="icon" id="experiment-article-section-8-icon">
 	    <!-- Enclose the icon image of your lab.-->
-	    <img src="../images/readings.jpg"/>
+	    <img src="../images/readings.jpg">
 	  </div>
 
           <div class="heading" id="experiment-article-section-8-heading">
diff --git a/src/lab/faq.html b/src/lab/faq.html
index 1336ac9b..dc7941d2 100755
--- a/src/lab/faq.html
+++ b/src/lab/faq.html
@@ -1,34 +1,29 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
-    <link href="images/favicon.ico" rel="shortcut icon"/>
+    <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
    
 	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
   <div id="top">
     	<header>
 	<!-- Navigation -->
@@ -42,7 +37,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>
 
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -80,7 +75,7 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
@@ -96,42 +91,42 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 Virtual Labs is an initiative of Ministry of Human Resources, India.
 </p>
 <p class="text-h3-darkblue-bold">Q2. What are the objectives of the Virtual Labs?</p>
-<p>The broad objectives of the ‘Virtual Lab’ as stated in  website are:<br/>
-1. To provide remote access to Labs in various disciplines<br/> 
-2. To arouse curiosity in students and  help them learn  concepts through remote experimentation  <br/>
-3. To provide a complete ‘Learning Management System’ (LMS) around the Virtual labs –<br/>
-a. access to web-resources, videos,  animated demonstrations and <br/>
-b. self evaluation <br/>
-4. To provide access to resources available  to only a limited number of users due to constraints of time and physical locations.<br/>
+<p>The broad objectives of the ‘Virtual Lab’ as stated in  website are:<br>
+1. To provide remote access to Labs in various disciplines<br> 
+2. To arouse curiosity in students and  help them learn  concepts through remote experimentation  <br>
+3. To provide a complete ‘Learning Management System’ (LMS) around the Virtual labs –<br>
+a. access to web-resources, videos,  animated demonstrations and <br>
+b. self evaluation <br>
+4. To provide access to resources available  to only a limited number of users due to constraints of time and physical locations.<br>
 </p>
 <p class="text-h3-darkblue-bold">Q3. What are the various types of Virtual Labs?</p>
-<p>There are two types of Virtual Labs:<br/>
+<p>There are two types of Virtual Labs:<br>
 <b>Simulation Based Virtual Labs:</b>  In these Virtual Labs, the experiments
 are modeled using mathematical equations.  The simulations are carried out
 remotely at a high end server, and the results are communicated to the student
 over the internet.  This class of Virtual Labs, at best, mimics the real-world
 scenarios/experiments.  Simulation based Virtual Labs are scalable and can
-cater to a large number of simultaneous users.<br/><b>Remote Triggered Virtual Labs:</b> In these Virtual Labs, the actual experiments are triggered remotely.  The output of the experiment (being conducted remotely) is communicated back to the student over the internet.  This class of Virtual Labs, gives the student the output of real-time experiments.  Remote Triggered Virtual Labs are difficult to scale and can cater to a limited number of users.  Typically, time-slots are booked before conducting such experiments.</p>	 
+cater to a large number of simultaneous users.<br><b>Remote Triggered Virtual Labs:</b> In these Virtual Labs, the actual experiments are triggered remotely.  The output of the experiment (being conducted remotely) is communicated back to the student over the internet.  This class of Virtual Labs, gives the student the output of real-time experiments.  Remote Triggered Virtual Labs are difficult to scale and can cater to a limited number of users.  Typically, time-slots are booked before conducting such experiments.</p>	 
 <p class="text-h3-darkblue-bold"> Q4. Who are the intended users of the Virtual Labs?</p>
 <p>
-The intended beneficiaries of the projects are: <br/>1. All students and Faculty
+The intended beneficiaries of the projects are: <br>1. All students and Faculty
 Members of Science and Engineering Colleges who do not have access to good
-lab-facilities and/or instruments.<br/> 2. High-school students, whose
+lab-facilities and/or instruments.<br> 2. High-school students, whose
 inquisitiveness will be triggered, possibly motivating them to take up
-higher-studies. <br/> 3. Researchers in different institutes who can collaborate /
-share equipment and resources. <br/> 4. Different engineering colleges, who can benefit from the content and related teaching resources. The project has completely fulfilled the requirements of the targeted beneficiaries (and even gone beyond). An eco-system has evolved around Virtual Labs, where the community has become involved in evolving and benefitting from the project.</p>
+higher-studies. <br> 3. Researchers in different institutes who can collaborate /
+share equipment and resources. <br> 4. Different engineering colleges, who can benefit from the content and related teaching resources. The project has completely fulfilled the requirements of the targeted beneficiaries (and even gone beyond). An eco-system has evolved around Virtual Labs, where the community has become involved in evolving and benefitting from the project.</p>
 <p class="text-h3-darkblue-bold">Q5. How can I access the Virtual Labs? </p>
 <p>All Virtual Labs can be accessed through a common website: <a href="http://vlabs.ac.in/" target="_blank">www.vlabs.ac.in</a>. At the user end, a PC and broadband connectivity enables the user to access Virtual Labs.</p>	 
 <p class="text-h3-darkblue-bold">Q6. Is it free to use?</p>
 <p>Yes, it is free of cost to the user.</p>	 
 <p class="text-h3-darkblue-bold">Q7. How I can find lab of my interest?</p>
 <p>The Virtual labs are divided into two categories on the Virtual Labs home
-  page (www.vlabs.ac.in) <br/>
-a.	Discipline Wise <br/>
-b.	Institute Wise	<br/> 
- 	The user can click on any of the categories to find out the lab of his preference. The user can also search for the virtual labs on the home page itself. There are two search options:-<br/>
-i.	Search by the name of the Virtual Lab: Here the user can type-in the name of the virtual lab of his preference from any institute or Discipline.<br/>
-ii.	Search by Discipline: Here the user can choose discipline of his preference from the drop down menu. After searching the desired Virtual lab, the user has to make a single click on the link, which would take him to that particular Lab-specific home page. This method of accessing the virtual lab is common to all the Labs available on the vlab.co.in homepage.<br/>
+  page (www.vlabs.ac.in) <br>
+a.	Discipline Wise <br>
+b.	Institute Wise	<br> 
+ 	The user can click on any of the categories to find out the lab of his preference. The user can also search for the virtual labs on the home page itself. There are two search options:-<br>
+i.	Search by the name of the Virtual Lab: Here the user can type-in the name of the virtual lab of his preference from any institute or Discipline.<br>
+ii.	Search by Discipline: Here the user can choose discipline of his preference from the drop down menu. After searching the desired Virtual lab, the user has to make a single click on the link, which would take him to that particular Lab-specific home page. This method of accessing the virtual lab is common to all the Labs available on the vlab.co.in homepage.<br>
 In some of the labs, the user will first have to register prior to conducting the experiments.	 
 </p> 	 	 
 <p class="text-h3-darkblue-bold">Q8. What are the software requirements for Virtual Labs?</p>
@@ -140,8 +135,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
   on <a href="http://vlabs.ac.in/pre-requisites.html"> pre-requisites </a> link
   to know the information about how to download, install and use the software.</p>	 
 <p class="text-h3-darkblue-bold">Q9. What are the system configuration needed to run Workshops ? </p>
-<p>System configuration required for running Virtual Labs:<br/> 1) Browser: Firefox,
-Chrome <br/> 2) Plugins: Flash, Java 1.6 version, and IcedTea<br/> 3) JavaScript should be enabled on the browser<br/> 4) No pop-up blockers<br/> 5) Internet connection (2-4 mbps)<br/> 6) Need an Electronics Faculty while running some of the adders, multiplexers experiments.</p> 	 	 
+<p>System configuration required for running Virtual Labs:<br> 1) Browser: Firefox,
+Chrome <br> 2) Plugins: Flash, Java 1.6 version, and IcedTea<br> 3) JavaScript should be enabled on the browser<br> 4) No pop-up blockers<br> 5) Internet connection (2-4 mbps)<br> 6) Need an Electronics Faculty while running some of the adders, multiplexers experiments.</p> 	 	 
 <p class="text-h3-darkblue-bold">Q10. Our college internet network has firewalls. Should any specific care be taken? </p>
 <p>If  Internet network operates behind a firewall, the  communication ports to facilitate VLab network traffic should be open. Specifically ports 3306, 5900, 5902, and 8700 will need to be opened.</p>
 <p class="text-h3-darkblue-bold">Q11. When the Virtual Labs can be used? </p>
@@ -149,8 +144,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 <p class="text-h3-darkblue-bold">Q12. Does the  Virtual Lab provide the  LMS that the objectives mention?</p>
 <p>Virtual Lab project provides a complete Leaning Management System. For most users, Virtual Lab provides all the relevant material at one place including the Objectives of the Experiment, Procedure, Lab manual, Pre- and Post-experiment quizzes, additional Lab resources, in addition to the Virtual Lab experiment. Most labs also have an associated question bank.</p>
 <p class="text-h3-darkblue-bold">Q13. How do I register for using the Virtual Labs? </p>
-<p>As mentioned earlier, Virtual Labs are divided into two categories: simulation based labs and remote triggered labs. Registration requirements are different for the two categories.<br/>
-<b>Simulation based Labs:</b> Many of the simulation based labs do not require registration. You can directly perform the experiment without registering yourself. On the other hand, some of the simulation virtual labs require registration for which the user can go to the respective website do a one-time registration.<br/>
+<p>As mentioned earlier, Virtual Labs are divided into two categories: simulation based labs and remote triggered labs. Registration requirements are different for the two categories.<br>
+<b>Simulation based Labs:</b> Many of the simulation based labs do not require registration. You can directly perform the experiment without registering yourself. On the other hand, some of the simulation virtual labs require registration for which the user can go to the respective website do a one-time registration.<br>
 <b>Remote Triggered Labs:</b> To access a remote triggered lab, a user has to book a slot. For booking a slot, you have to register yourself first and then book a slot from the slot chart. All the available /booked slots can be viewed on this chart. Once a request for slot-booking is made, all the information regarding the user id, password and the slot booked will be sent to the user’s email address provided by the user at the time of registration. Once registered, a user can login using the same credentials every time. This registration has to be done by the user separately for each of the remote triggered virtual labs.</p>	 
 <p class="text-h3-darkblue-bold">Q14. What benefit will Virtual Lab provide?</p>
 <p>Virtual Lab is a complete Learning Management System. All the relevant information including the theory, lab-manual, additional web-resources, video-lectures, animated demonstrations and self-evaluation are available at a common place. Virtual Labs can be used in a complementary fashion to augment the efficacy of theory-based lectures. Small projects can also be carried out using some of the Virtual Labs. Virtual Labs can be effectively used to give lab-demonstrations to large class.</p>
@@ -159,10 +154,10 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
   I already have a Physical Lab in my college/institute.
 </p>
 <p class="text-h3-darkblue-bold">Q16. When I do an experiment how do I know if the experiment I did is done right?</p>
-<p>Virtual Labs will provide to the students the result of an experiment by one of the following methods (or possibly a combination):<br/> 
-1. Modelling the physical phenomenon by a set of equations and carrying out simulations to yield the result of the particular experiment. <br/>
-2. Providing a corresponding measurement data for the Virtual Lab experiment based previously carried out measurements on an actual system. <br/>
-3. Remotely triggering an experiment in an actual lab and providing the student the result of the experiment through the computer interface.<br/></p>	
+<p>Virtual Labs will provide to the students the result of an experiment by one of the following methods (or possibly a combination):<br> 
+1. Modelling the physical phenomenon by a set of equations and carrying out simulations to yield the result of the particular experiment. <br>
+2. Providing a corresponding measurement data for the Virtual Lab experiment based previously carried out measurements on an actual system. <br>
+3. Remotely triggering an experiment in an actual lab and providing the student the result of the experiment through the computer interface.<br></p>	
 <p class="text-h3-darkblue-bold">Q17. How can a college conduct a Virtual lab Workshop? What to do?</p>
 <p> Drop a mail to <a href="mailto:support@vlabs.ac.in">support@vlabs.ac.in</a></p>
 <p class="text-h3-darkblue-bold">Q18. What does one can do if got stuck?</p>
diff --git a/src/lab/index.html b/src/lab/index.html
index 610178c4..ddaf2a83 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -1,35 +1,30 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
 
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
     
-     <link href="images/favicon.ico" rel="shortcut icon"/>
+     <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 <script>(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)})(window,document,'script','//www.google-analytics.com/analytics.js','ga');ga('create', 'UA-67558473-1', 'auto');ga('send', 'pageview');</script>	
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -43,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -82,14 +77,14 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
@@ -100,7 +95,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
-<br/>
+<br>
 <p>
 		Welcome to the Problem Solving Virtual Lab developed at IIIT Hyderabad. The interactive experiments in this lab will give the students an opportunity for learning and better understanding of using computer programming as a tool to solve basic to advanced problems.
 	  </p>
diff --git a/src/themes/green-icon/search-result.html b/src/themes/green-icon/search-result.html
index 703a679d..766ed839 100755
--- a/src/themes/green-icon/search-result.html
+++ b/src/themes/green-icon/search-result.html
@@ -1,33 +1,28 @@
-<!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager-->
-
-    <meta charset="utf-8"/>
-    <meta content="IE=edge" http-equiv="X-UA-Compatible"/>
-    <meta content="width=device-width, initial-scale=1" name="viewport"/>
-    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description"/>
-    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author"/>
+<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
+
+    <meta charset="utf-8">
+    <meta content="IE=edge" http-equiv="X-UA-Compatible">
+    <meta content="width=device-width, initial-scale=1" name="viewport">
+    <meta content="Welcome to Virtual Labs - A MHRD Govt of india Initiative" name="description">
+    <meta content="Virtual Labs - A MHRD Govt of india Initiative" name="author">
     
     <title>Welcome to Virtual Labs - A MHRD Govt of india Initiative</title>
-    <link href="images/favicon.ico" rel="shortcut icon"/>
+    <link href="images/favicon.ico" rel="shortcut icon">
     
  
-    <link href="css/bootstrap.min.css" rel="stylesheet"/>
+    <link href="css/bootstrap.min.css" rel="stylesheet">
 
 	<!-- Important Owl stylesheet -->
-	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet"/>
-	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet"/>
+	<link href="vendors/owl-carousel/owl.carousel.css" rel="stylesheet">
+	<link href="vendors/owl-carousel/owl.theme.css" rel="stylesheet">
 	
-	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet"/>
+	<link href="vendors/font-awesome/css/font-awesome.css" rel="stylesheet">
 
     <!-- Custom CSS -->
-    <link href="css/style.css" rel="stylesheet"/>
+    <link href="css/style.css" rel="stylesheet">
 	<script src="tabs.js" type="text/javascript"></script>
 </head>
-<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><noscript class="gtm">&amp;amp;amp;amp;lt;iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"&amp;amp;amp;amp;gt;&amp;amp;amp;amp;lt;/iframe&amp;amp;amp;amp;gt;</noscript><!--End Google Tag Manager (noscript)-->
+<body class="index" id="page-top"><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)-->
 <div id="top">
 	<header>
 	<!-- Navigation -->
@@ -41,7 +36,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -50,8 +45,8 @@
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
 			                		<form action="search-result.html" method="get">
-			                        	<input class="search-textbox" id="q" name="q" placeholder="SEARCH FOR A LAB" type="text"/>
-			                        	<input class="search-button" type="submit" value=""/>
+			                        	<input class="search-textbox" id="q" name="q" placeholder="SEARCH FOR A LAB" type="text">
+			                        	<input class="search-button" type="submit" value="">
 			                        </form>
 			                	</li>
 			                </ul>
@@ -83,7 +78,7 @@
 	<div id="content">
 			<div class="container-fluid">
 				<div class="row">
-					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;"/>
+					<hr style="background:#ff6600 !important;  height: 8px; margin-top: 0px;">
 				</div> <!-- row end -->
 			</div> <!-- container-fluid end for slider -->
 			
@@ -160,9 +155,9 @@ <h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;">U
 			
 			<div class="col-md-2 border-right-green-dotted">
 				<h2 class="text-h2-lightblue-small" style="font-weight: bold;margin-top: 0px;"> Follow us</h2>
-				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"/> </a>
-				<a class="text-a-lightgreen nounderline" href="https://twitter.com/" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"/></a>
-				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"/></a>
+				<a class="text-a-lightgreen nounderline" href="https://www.facebook.com/pages/Virtual-Labs-IIT-Delhi/301510159983871" target="_blank"> <img src="images/social/fb.png" style="border-radius: 50%;"> </a>
+				<a class="text-a-lightgreen nounderline" href="https://twitter.com/" target="_blank"> <img src="images/social/twitter.png" style="border-radius: 50%;"></a>
+				<a class="text-a-lightgreen nounderline" href="http://linkedin.com" target="_blank"> <img src="images/social/linkedin.png" style="border-radius: 50%;"></a>
 			</div>
 			
  		</div>

From 47e938f8bde5af2b4107b989421acabadb9c9bb4 Mon Sep 17 00:00:00 2001
From: ojas1 <mohrilop@gmail.com>
Date: Wed, 8 Jul 2020 09:50:17 +0530
Subject: [PATCH 09/22] links update

---
 src/lab/Courses Aligned.html             | 12 ++++++------
 src/lab/Feedback.html                    | 12 ++++++------
 src/lab/Introduction.html                | 12 ++++++------
 src/lab/List of experiments.html         | 12 ++++++------
 src/lab/Prerequisites.html               | 12 ++++++------
 src/lab/Target Audience.html             | 12 ++++++------
 src/lab/exp1/Experiment.html             | 12 ++++++------
 src/lab/exp1/Feedback.html               | 12 ++++++------
 src/lab/exp1/Further Readings.html       | 10 +++++-----
 src/lab/exp1/Introduction.html           | 12 ++++++------
 src/lab/exp1/Manual.html                 | 12 ++++++------
 src/lab/exp1/Objective.html              | 10 +++++-----
 src/lab/exp1/Procedure.html              | 12 ++++++------
 src/lab/exp1/Quizzes.html                | 12 ++++++------
 src/lab/exp1/Theory.html                 | 12 ++++++------
 src/lab/exp10/Experiment.html            | 12 ++++++------
 src/lab/exp10/Feedback.html              | 12 ++++++------
 src/lab/exp10/Further Readings.html      | 12 ++++++------
 src/lab/exp10/Introduction.html          | 12 ++++++------
 src/lab/exp10/Manual.html                | 12 ++++++------
 src/lab/exp10/Objective.html             | 12 ++++++------
 src/lab/exp10/Procedure.html             | 12 ++++++------
 src/lab/exp10/Quizzes.html               | 12 ++++++------
 src/lab/exp10/Theory.html                | 12 ++++++------
 src/lab/exp2/Experiment.html             | 12 ++++++------
 src/lab/exp2/Feedback.html               | 12 ++++++------
 src/lab/exp2/Further Readings.html       | 12 ++++++------
 src/lab/exp2/Introduction.html           | 12 ++++++------
 src/lab/exp2/Manual.html                 | 12 ++++++------
 src/lab/exp2/Objective.html              | 12 ++++++------
 src/lab/exp2/Procedure.html              | 12 ++++++------
 src/lab/exp2/Quizzes.html                | 12 ++++++------
 src/lab/exp2/Theory.html                 | 12 ++++++------
 src/lab/exp3/Experiment.html             | 12 ++++++------
 src/lab/exp3/Feedback.html               | 12 ++++++------
 src/lab/exp3/Further Readings.html       | 12 ++++++------
 src/lab/exp3/Introduction.html           | 12 ++++++------
 src/lab/exp3/Manual.html                 | 12 ++++++------
 src/lab/exp3/Objective.html              | 12 ++++++------
 src/lab/exp3/Procedure.html              | 12 ++++++------
 src/lab/exp3/Quizzes.html                | 12 ++++++------
 src/lab/exp3/Theory.html                 | 12 ++++++------
 src/lab/exp4/Experiment.html             | 12 ++++++------
 src/lab/exp4/Feedback.html               | 12 ++++++------
 src/lab/exp4/Further Readings.html       | 12 ++++++------
 src/lab/exp4/Introduction.html           | 12 ++++++------
 src/lab/exp4/Manual.html                 | 12 ++++++------
 src/lab/exp4/Objective.html              | 12 ++++++------
 src/lab/exp4/Procedure.html              | 12 ++++++------
 src/lab/exp4/Quizzes.html                | 12 ++++++------
 src/lab/exp4/Theory.html                 | 12 ++++++------
 src/lab/exp5/Experiment.html             | 12 ++++++------
 src/lab/exp5/Feedback.html               | 12 ++++++------
 src/lab/exp5/Further Readings.html       | 12 ++++++------
 src/lab/exp5/Introduction.html           | 12 ++++++------
 src/lab/exp5/Manual.html                 | 12 ++++++------
 src/lab/exp5/Objective.html              | 12 ++++++------
 src/lab/exp5/Procedure.html              | 12 ++++++------
 src/lab/exp5/Quizzes.html                | 12 ++++++------
 src/lab/exp5/Theory.html                 | 12 ++++++------
 src/lab/exp6/Experiment.html             | 12 ++++++------
 src/lab/exp6/Feedback.html               | 12 ++++++------
 src/lab/exp6/Further Readings.html       | 12 ++++++------
 src/lab/exp6/Introduction.html           | 12 ++++++------
 src/lab/exp6/Manual.html                 | 12 ++++++------
 src/lab/exp6/Objective.html              | 12 ++++++------
 src/lab/exp6/Procedure.html              | 12 ++++++------
 src/lab/exp6/Quizzes.html                | 12 ++++++------
 src/lab/exp6/Theory.html                 | 12 ++++++------
 src/lab/exp7/Experiment.html             | 12 ++++++------
 src/lab/exp7/Feedback.html               | 10 +++++-----
 src/lab/exp7/Further Readings.html       | 12 ++++++------
 src/lab/exp7/Introduction.html           | 12 ++++++------
 src/lab/exp7/Manual.html                 | 12 ++++++------
 src/lab/exp7/Objective.html              | 12 ++++++------
 src/lab/exp7/Procedure.html              | 12 ++++++------
 src/lab/exp7/Quizzes.html                | 12 ++++++------
 src/lab/exp7/Theory.html                 | 12 ++++++------
 src/lab/exp8/Experiment.html             | 12 ++++++------
 src/lab/exp8/Feedback.html               | 12 ++++++------
 src/lab/exp8/Further Readings.html       | 12 ++++++------
 src/lab/exp8/Introduction.html           | 12 ++++++------
 src/lab/exp8/Manual.html                 | 12 ++++++------
 src/lab/exp8/Objective.html              | 12 ++++++------
 src/lab/exp8/Procedure.html              | 12 ++++++------
 src/lab/exp8/Quizzes.html                | 12 ++++++------
 src/lab/exp8/Theory.html                 | 12 ++++++------
 src/lab/exp9/Experiment.html             | 12 ++++++------
 src/lab/exp9/Feedback.html               | 12 ++++++------
 src/lab/exp9/Further Readings.html       | 12 ++++++------
 src/lab/exp9/Introduction.html           | 12 ++++++------
 src/lab/exp9/Manual.html                 | 12 ++++++------
 src/lab/exp9/Objective.html              | 12 ++++++------
 src/lab/exp9/Procedure.html              | 12 ++++++------
 src/lab/exp9/Quizzes.html                | 12 ++++++------
 src/lab/exp9/Theory.html                 | 12 ++++++------
 src/lab/faq.html                         | 12 ++++++------
 src/lab/index.html                       | 10 +++++-----
 src/themes/green-icon/search-result.html | 10 +++++-----
 99 files changed, 589 insertions(+), 589 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 6b86c281..105ee0b5 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 			                    <!--<li class="page-scroll menu-li menu-li-active">
-			                        <a href="http://vlabs.ac.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
+			                        <a href="http://vlab.co.in/labs.html"  class="menu-a menu-a-active" >ALL LABS</a>
 			                    </li>-->
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 8f967435..16054c00 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 			                   <!-- <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>-->
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 211ad668..bc8504a5 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index be506710..1b4a17af 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index 329eabd7..9f766234 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -38,7 +38,7 @@
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 			                </button>
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
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diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index e41d2c38..70d9b75a 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
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diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 2c753cbd..9f59af01 100644
--- a/src/lab/exp1/Experiment.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index a57e1e98..5536bf20 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -38,7 +38,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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 		-->
 	                                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -87,7 +87,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index cd115a64..ea42f08a 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -38,7 +38,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -55,13 +55,13 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 			                    
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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 			                </ul>
 			                
@@ -84,7 +84,7 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 6cf5caee..9d99c043 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -38,7 +38,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
index b4150169..dbd84ef6 100644
--- a/src/lab/exp1/Manual.html
+++ b/src/lab/exp1/Manual.html
@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 83622cbc..b6ab82f7 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -84,7 +84,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
index 0fd6f95a..0ebd4786 100644
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -117,7 +117,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index 88858737..cb91622e 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quizzes.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -117,7 +117,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index b832bd9f..4394c16b 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index f34fd016..52e3d7a0 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index 1135f1a8..495d9211 100644
--- a/src/lab/exp2/Feedback.html
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index 5097d27a..bc66fdd2 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index 4d01158b..2bb945df 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index cf8fd652..7338c015 100644
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 3e868570..6035b1a4 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quizzes.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index 2961ffdb..53b17def 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index 604070be..5496d4be 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index aae81051..cb2e910e 100644
--- a/src/lab/exp3/Further Readings.html	
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 8f33c454..52ac2a09 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index 4fe6c6c0..26babceb 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 070e9122..03341d21 100644
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 5f60b805..4450b675 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 29f62f4f..4191008b 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 37de8dfc..d2000593 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index f83c3826..bcc5e67f 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index 40412446..fa4ec74f 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index 8c4c8079..6702223a 100644
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index 4fd900fc..450ac84d 100644
--- a/src/lab/exp4/Procedure.html
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index 86ef9a39..a90922bd 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 204eeb1e..d7062b75 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index 99418f4e..ddb10dbb 100644
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index 41aa7d6c..42135917 100644
--- a/src/lab/exp5/Objective.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index 2f1cb108..7d400eb8 100644
--- a/src/lab/exp5/Procedure.html
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@@ -38,7 +38,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -55,15 +55,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quizzes.html
index fde0f54f..da1539e6 100644
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@@ -68,7 +68,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -116,7 +116,7 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index 0eeecd72..8027c6fc 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -38,7 +38,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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@@ -55,15 +55,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index 56ad40fc..f34a598a 100644
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index fce59639..c8299ae9 100644
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index 034806d1..52777e83 100644
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@@ -55,15 +55,15 @@
 			                
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index 919233d6..8f7cfa6d 100644
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quizzes.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -117,7 +117,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 9a4b496f..99a5fd35 100644
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@@ -38,7 +38,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index 7f5f1072..b8d5a796 100644
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@@ -38,7 +38,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index 0162fb8b..ec092bef 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 			                    
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -84,7 +84,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 475bfe8b..b4c1f61b 100644
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+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index f1016970..d74ede1d 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -117,7 +117,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index e6c943ee..8e3bad9b 100644
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index b42fc55a..68b609cf 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index d2dc7a18..fce13e72 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 2fba9c0d..c8126429 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index 18a3233e..7f5b21a4 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 5ff90a72..598397a5 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index 9cd43107..d18aca39 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index b567617b..621b2043 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 9cff77a1..2498c59b 100644
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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index e6982faf..a0445be6 100644
--- a/src/lab/exp9/Further Readings.html	
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-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index 9e8dc6d5..5d4c89b1 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 09b0766d..7831bd1e 100644
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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@@ -86,7 +86,7 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
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diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 76a80c96..494852d7 100644
--- a/src/lab/exp9/Objective.html
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@@ -38,7 +38,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
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 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
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 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
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-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index 49334f35..16794d92 100644
--- a/src/lab/exp9/Procedure.html
+++ b/src/lab/exp9/Procedure.html
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quizzes.html
index c0ed8769..ccd1a7fb 100644
--- a/src/lab/exp9/Quizzes.html
+++ b/src/lab/exp9/Quizzes.html
@@ -69,7 +69,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -86,15 +86,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -117,7 +117,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 4f6856bb..e98b84fe 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,15 +55,15 @@
 			                
 			             <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 		<!--	                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 		-->	                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -86,7 +86,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/faq.html b/src/lab/faq.html
index dc7941d2..ee78c49f 100755
--- a/src/lab/faq.html
+++ b/src/lab/faq.html
@@ -37,7 +37,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>
 
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -54,13 +54,13 @@
 
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html">HOME</a>
 			                    </li>
 			                    
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 
@@ -116,7 +116,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 higher-studies. <br> 3. Researchers in different institutes who can collaborate /
 share equipment and resources. <br> 4. Different engineering colleges, who can benefit from the content and related teaching resources. The project has completely fulfilled the requirements of the targeted beneficiaries (and even gone beyond). An eco-system has evolved around Virtual Labs, where the community has become involved in evolving and benefitting from the project.</p>
 <p class="text-h3-darkblue-bold">Q5. How can I access the Virtual Labs? </p>
-<p>All Virtual Labs can be accessed through a common website: <a href="http://vlabs.ac.in/" target="_blank">www.vlabs.ac.in</a>. At the user end, a PC and broadband connectivity enables the user to access Virtual Labs.</p>	 
+<p>All Virtual Labs can be accessed through a common website: <a href="http://vlab.co.in/" target="_blank">www.vlabs.ac.in</a>. At the user end, a PC and broadband connectivity enables the user to access Virtual Labs.</p>	 
 <p class="text-h3-darkblue-bold">Q6. Is it free to use?</p>
 <p>Yes, it is free of cost to the user.</p>	 
 <p class="text-h3-darkblue-bold">Q7. How I can find lab of my interest?</p>
@@ -132,7 +132,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 30px; ">F
 <p class="text-h3-darkblue-bold">Q8. What are the software requirements for Virtual Labs?</p>
 <p>Download Links for all the software required to use the labs are provided on
   each lab’s homepage (wherever required). Please click
-  on <a href="http://vlabs.ac.in/pre-requisites.html"> pre-requisites </a> link
+  on <a href="http://vlab.co.in/pre-requisites.html"> pre-requisites </a> link
   to know the information about how to download, install and use the software.</p>	 
 <p class="text-h3-darkblue-bold">Q9. What are the system configuration needed to run Workshops ? </p>
 <p>System configuration required for running Virtual Labs:<br> 1) Browser: Firefox,
diff --git a/src/lab/index.html b/src/lab/index.html
index ddaf2a83..f60861c9 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -38,7 +38,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -55,13 +55,13 @@
 			                
 			                <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/">HOME</a>
 			                    </li>
 			                    
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/participating-institutes">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/contact-us">CONTACT</a>
 			                    </li>
 			                </ul>
 			                
@@ -84,7 +84,7 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
diff --git a/src/themes/green-icon/search-result.html b/src/themes/green-icon/search-result.html
index 766ed839..4064367a 100755
--- a/src/themes/green-icon/search-result.html
+++ b/src/themes/green-icon/search-result.html
@@ -36,7 +36,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlab.co.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -53,15 +53,15 @@
 			                
 			               <ul class="nav navbar-nav navbar-right menu-ul">
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html">HOME</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html">HOME</a>
 			                    </li>
 			                    <li class="page-scroll menu-li menu-li-active">
-			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                        <a class="menu-a menu-a-active" href="http://vlab.co.in/labs.html">ALL LABS</a>
 			                    </li>
 			                    <li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#partner">PARTNERS</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
-			                        <a class="menu-a" href="http://vlabs.ac.in/index.html#contact">CONTACT</a>
+			                        <a class="menu-a" href="http://vlab.co.in/index.html#contact">CONTACT</a>
 			                    </li>
 			                </ul>
 			                

From f012eede14e13a6e9635004d28ba2058bf88b5fa Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Fri, 8 Jan 2021 10:43:26 +0530
Subject: [PATCH 10/22] fixed feedback links

---
 src/lab/Courses Aligned.html              |   6 ++--
 src/lab/Feedback.html                     |  29 +++++++++++++++++---
 src/lab/Introduction.html                 |   6 ++--
 src/lab/List of experiments.html          |  10 +++----
 src/lab/Prerequisites.html                |   8 +++---
 src/lab/Target Audience.html              |   8 +++---
 src/lab/exp1/Experiment.html              |   8 +++---
 src/lab/exp1/Feedback.html                |  32 +++++++++++++++++++---
 src/lab/exp1/Further Readings.html        |   8 +++---
 src/lab/exp1/Introduction.html            |   8 +++---
 src/lab/exp1/Manual.html                  |   8 +++---
 src/lab/exp1/Objective.html               |   8 +++---
 src/lab/exp1/Procedure.html               |   8 +++---
 src/lab/exp1/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp1/Theory.html                  |   8 +++---
 src/lab/exp10/Experiment.html             |   8 +++---
 src/lab/exp10/Feedback.html               |  31 ++++++++++++++++++---
 src/lab/exp10/Further Readings.html       |   8 +++---
 src/lab/exp10/Introduction.html           |   8 +++---
 src/lab/exp10/Manual.html                 |   8 +++---
 src/lab/exp10/Objective.html              |   8 +++---
 src/lab/exp10/Procedure.html              |   8 +++---
 src/lab/exp10/{Quizzes.html => Quiz.html} |   8 +++---
 src/lab/exp10/Theory.html                 |   8 +++---
 src/lab/exp2/Experiment.html              |   8 +++---
 src/lab/exp2/Feedback.html                |  32 +++++++++++++++++++---
 src/lab/exp2/Further Readings.html        |   8 +++---
 src/lab/exp2/Introduction.html            |   8 +++---
 src/lab/exp2/Manual.html                  |   8 +++---
 src/lab/exp2/Objective.html               |   8 +++---
 src/lab/exp2/Procedure.html               |   8 +++---
 src/lab/exp2/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp2/Theory.html                  |   8 +++---
 src/lab/exp3/Experiment.html              |   8 +++---
 src/lab/exp3/Feedback.html                |  31 ++++++++++++++++++---
 src/lab/exp3/Further Readings.html        |   8 +++---
 src/lab/exp3/Introduction.html            |   8 +++---
 src/lab/exp3/Manual.html                  |   8 +++---
 src/lab/exp3/Objective.html               |   8 +++---
 src/lab/exp3/Procedure.html               |   8 +++---
 src/lab/exp3/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp3/Theory.html                  |   8 +++---
 src/lab/exp4/Experiment.html              |   8 +++---
 src/lab/exp4/Feedback.html                |  32 +++++++++++++++++++---
 src/lab/exp4/Further Readings.html        |   8 +++---
 src/lab/exp4/Introduction.html            |   8 +++---
 src/lab/exp4/Manual.html                  |   8 +++---
 src/lab/exp4/Objective.html               |   8 +++---
 src/lab/exp4/Procedure.html               |   8 +++---
 src/lab/exp4/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp4/Theory.html                  |   8 +++---
 src/lab/exp5/Experiment.html              |   8 +++---
 src/lab/exp5/Feedback.html                |  32 +++++++++++++++++++---
 src/lab/exp5/Further Readings.html        |   8 +++---
 src/lab/exp5/Introduction.html            |   8 +++---
 src/lab/exp5/Manual.html                  |   8 +++---
 src/lab/exp5/Objective.html               |   8 +++---
 src/lab/exp5/Procedure.html               |   8 +++---
 src/lab/exp5/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp5/Theory.html                  |   8 +++---
 src/lab/exp6/Experiment.html              |   8 +++---
 src/lab/exp6/Feedback.html                |  31 ++++++++++++++++++---
 src/lab/exp6/Further Readings.html        |   8 +++---
 src/lab/exp6/Introduction.html            |   8 +++---
 src/lab/exp6/Manual.html                  |   8 +++---
 src/lab/exp6/Objective.html               |   8 +++---
 src/lab/exp6/Procedure.html               |   8 +++---
 src/lab/exp6/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp6/Theory.html                  |   8 +++---
 src/lab/exp7/Experiment.html              |   8 +++---
 src/lab/exp7/Feedback.html                |  30 +++++++++++++++++---
 src/lab/exp7/Further Readings.html        |   8 +++---
 src/lab/exp7/Introduction.html            |   8 +++---
 src/lab/exp7/Manual.html                  |   8 +++---
 src/lab/exp7/Objective.html               |   8 +++---
 src/lab/exp7/Procedure.html               |   8 +++---
 src/lab/exp7/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp7/Theory.html                  |   8 +++---
 src/lab/exp8/Experiment.html              |   8 +++---
 src/lab/exp8/Feedback.html                |  30 +++++++++++++++++---
 src/lab/exp8/Further Readings.html        |   8 +++---
 src/lab/exp8/Introduction.html            |   8 +++---
 src/lab/exp8/Manual.html                  |   8 +++---
 src/lab/exp8/Objective.html               |   8 +++---
 src/lab/exp8/Procedure.html               |   8 +++---
 src/lab/exp8/{Quizzes.html => Quiz.html}  |   8 +++---
 src/lab/exp8/Theory.html                  |   8 +++---
 src/lab/exp9/Experiment.html              |   8 +++---
 src/lab/exp9/Feedback.html                |  30 +++++++++++++++++---
 src/lab/exp9/Further Readings.html        |   8 +++---
 src/lab/exp9/Introduction.html            |   6 ++--
 src/lab/exp9/Manual.html                  |   6 ++--
 src/lab/exp9/Objective.html               |   6 ++--
 src/lab/exp9/Procedure.html               |   8 +++---
 src/lab/exp9/{Quizzes.html => Quiz.html}  |   6 ++--
 src/lab/exp9/Theory.html                  |   6 ++--
 src/lab/images/vlabs-color-small-moe.jpg  | Bin 0 -> 32248 bytes
 src/lab/index.html                        |  23 ++++++++++------
 98 files changed, 644 insertions(+), 387 deletions(-)
 rename src/lab/exp1/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp10/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp2/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp3/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp4/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp5/{Quizzes.html => Quiz.html} (93%)
 rename src/lab/exp6/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp7/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp8/{Quizzes.html => Quiz.html} (94%)
 rename src/lab/exp9/{Quizzes.html => Quiz.html} (95%)
 create mode 100644 src/lab/images/vlabs-color-small-moe.jpg

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 8eabaf5a..c4c5c2c8 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,12 +91,12 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 3ada0a03..c2b3733b 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,17 +91,38 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://feedback.vlabs.ac.in/"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Problem Solving Lab</h1><a href="http://feedback.vlabs.ac.in/">Feedback</a>						</div>
+<h1 class="text-h2-lightblue">Problem Solving Lab</h1>
+
+
+				 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index d8e37d40..3d246f24 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,12 +91,12 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 5c057765..201079f0 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,19 +91,19 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
 <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 <br/>
-<ul id="list-of-experiments">
+<ol id="list-of-experiments">
 <li>
 <!--Link and name of the experiment 1 -->
 <a href="exp1/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Numerical Representation</a>
@@ -144,7 +144,7 @@ <h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
 <!--Link and name of the experiment 1 -->
 <a href="exp10/Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab">Sequences</a>
 </li>
-</ul>
+</ol>
 </div>						</div>
 					</div>
 			</div>
diff --git a/src/lab/Prerequisites.html b/src/lab/Prerequisites.html
index 085c5a0f..bd22f6a3 100644
--- a/src/lab/Prerequisites.html
+++ b/src/lab/Prerequisites.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,17 +91,17 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html/"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
+<h1 class="text-h1-lightblue">Problem Solving Lab</h1><div>
 <br/>
 <p>
 </p><ul>
diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index faf44dbd..4eb2fe00 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,17 +91,17 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Problem Solving Lab</h1><div>
+<h1 class="text-h1-lightblue">Problem Solving Lab</h1><div>
 <br/><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
 	  </p>
 </div>						</div>
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
index 472a7046..db9d1908 100644
--- a/src/lab/exp1/Experiment.html
+++ b/src/lab/exp1/Experiment.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
index f2706f6c..d749b347 100644
--- a/src/lab/exp1/Feedback.html
+++ b/src/lab/exp1/Feedback.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -92,15 +92,39 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Numerical Representation</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Numerical Representation</h1>
+
+
+
+						 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+			</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index 4d030855..01328a87 100644
--- a/src/lab/exp1/Further Readings.html	
+++ b/src/lab/exp1/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -89,15 +89,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
index 55080f74..dc60f409 100644
--- a/src/lab/exp1/Introduction.html
+++ b/src/lab/exp1/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
 <br/>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index 21e498e7..d18e061a 100644
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
 	</p>
diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
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+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp1/Quizzes.html b/src/lab/exp1/Quiz.html
similarity index 94%
rename from src/lab/exp1/Quizzes.html
rename to src/lab/exp1/Quiz.html
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@@ -74,7 +74,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -122,10 +122,10 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
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+<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index d26e606c..046878c1 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-hq-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index 3e28907c..597dbc07 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index 4be57de8..8e0a4752 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,38 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Sequences</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Sequences</h1>
+
+
+					 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+		</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp10/Further Readings.html b/src/lab/exp10/Further Readings.html
index a9c55cf7..15bf9abf 100644
--- a/src/lab/exp10/Further Readings.html	
+++ b/src/lab/exp10/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index c06e45ba..1d4d2d39 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <br/>
 <p> 
 In this experiment we introduce you to two very famous algorithmic problems.One problem is longest continuous decreasing subsequence problem and other one is longest increasing subsequence problem.
diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Sequences using Computer Programming.
 	</p>
diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 	      Procedure for the experiment is as follows.
 	    </p>
diff --git a/src/lab/exp10/Quizzes.html b/src/lab/exp10/Quiz.html
similarity index 94%
rename from src/lab/exp10/Quizzes.html
rename to src/lab/exp10/Quiz.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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@@ -122,10 +122,10 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
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 <div class="col-md-10 lab-list-col-10">
 							
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+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
index 6fb94c04..36485f8e 100644
--- a/src/lab/exp10/Theory.html
+++ b/src/lab/exp10/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
index e72f330d..43dd8791 100644
--- a/src/lab/exp2/Experiment.html
+++ b/src/lab/exp2/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
index a00e9ba7..093c0f9c 100644
--- a/src/lab/exp2/Feedback.html
+++ b/src/lab/exp2/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,39 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1>
+
+
+
+						 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+		</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
index 900a22be..2750e39c 100644
--- a/src/lab/exp2/Further Readings.html	
+++ b/src/lab/exp2/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index 65df8aed..ea072da3 100644
--- a/src/lab/exp2/Introduction.html
+++ b/src/lab/exp2/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Many students in some class or either might have been interested in Number theory as it is
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p>
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
index fdf7bf68..8eab27f8 100644
--- a/src/lab/exp2/Objective.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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@@ -91,15 +91,15 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Number Theory using Computer Programming.
 	</p>
diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
index 92041156..5ffa7716 100644
--- a/src/lab/exp2/Procedure.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 	      Procedure for the experiment is as follows.
 	    </p>
diff --git a/src/lab/exp2/Quizzes.html b/src/lab/exp2/Quiz.html
similarity index 94%
rename from src/lab/exp2/Quizzes.html
rename to src/lab/exp2/Quiz.html
index c4d29576..3e66cfbb 100644
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@@ -74,7 +74,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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@@ -122,10 +122,10 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index 32e09134..b539ab1d 100644
--- a/src/lab/exp2/Theory.html
+++ b/src/lab/exp2/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Beauty of Numbers</h1>
+<h1 class="text-h1-lightblue">Beauty of Numbers</h1>
 <br/><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 2342bf61..434c8c85 100644
--- a/src/lab/exp3/Experiment.html
+++ b/src/lab/exp3/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index 2998f3fc..db9e5e39 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,38 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">More on Numbers</h1>
+
+						 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+
+	</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
index b35c4095..a69d4851 100644
--- a/src/lab/exp3/Further Readings.html	
+++ b/src/lab/exp3/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <li>
 <a href="http://en.wikipedia.org/wiki/Problem_solving">http://en.wikipedia.org/wiki/Problem_solving</a>
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 29658a9c..9f66256b 100644
--- a/src/lab/exp3/Introduction.html
+++ b/src/lab/exp3/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
 Many students in some class or either might have been interested in Number theory as it is so much fun in solving those riddles.Here we present two problems to refresh your skills. Hope you will love them. And the difference is that you may not have learnt computer programming back then but you know some computer programming now, so you can use the computer and program the task. 
 </p>
diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
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--- a/src/lab/exp3/Manual.html
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@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp3/Objective.html b/src/lab/exp3/Objective.html
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--- a/src/lab/exp3/Objective.html
+++ b/src/lab/exp3/Objective.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Number Theory using Computer Programming.
 	</p>
diff --git a/src/lab/exp3/Procedure.html b/src/lab/exp3/Procedure.html
index 53c357bc..37f44e45 100644
--- a/src/lab/exp3/Procedure.html
+++ b/src/lab/exp3/Procedure.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp3/Quizzes.html b/src/lab/exp3/Quiz.html
similarity index 94%
rename from src/lab/exp3/Quizzes.html
rename to src/lab/exp3/Quiz.html
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -122,17 +122,17 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 
 
 
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 70ad7f5a..99135a6d 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index 292ed19f..e5c19f27 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 6ee3bdb8..7e24ccf5 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,39 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Factorials</h1>
+
+
+					 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
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+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
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+
+                                <p>
+                                    Thanks for your time !
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+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
index 4b79399b..ac8e5c68 100644
--- a/src/lab/exp4/Further Readings.html	
+++ b/src/lab/exp4/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <li>
 <a href="http://en.wikipedia.org/wiki/Problem_solving">http://en.wikipedia.org/wiki/Problem_solving</a>
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index b2cf3fce..0b448144 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h11-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p>
 Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index 9644003b..0a449f12 100644
--- a/src/lab/exp4/Objective.html
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Factorials using Computer Programming.
 	</p>
diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
index c9d4b39e..e200c134 100644
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp4/Quizzes.html b/src/lab/exp4/Quiz.html
similarity index 94%
rename from src/lab/exp4/Quizzes.html
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index 0d3be48a..4cf19a0e 100644
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@@ -74,7 +74,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index 21dbaa2d..fab71ae2 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index e2ae60df..7e6e9d4e 100644
--- a/src/lab/exp5/Experiment.html
+++ b/src/lab/exp5/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index a68eaed6..fe05f08b 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,39 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">String Operations</h1>
+
+
+			 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+
+		</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
index 0e49479c..105f774d 100644
--- a/src/lab/exp5/Further Readings.html	
+++ b/src/lab/exp5/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index 0aa2fd2e..5e720c0f 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 String is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and/or the length changed, or it may be fixed (after creation). A string is generally understood as a data type and is often implemented as a byte (or word) array that stores a sequence of elements, typically characters, using some character encoding. A string may also denote more general array data types and/or other sequential data types and structures; terms such as byte string, or more general, string of datatype, or datatype-string, are sometimes used to denote strings in which the stored data does not(necessarily) represent text. 
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index 50067a03..e150ffe0 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p>
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index 9546fdfc..a50dab33 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Strings using Computer Programming.
 	</p>
diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
index 09b84352..8467fbaf 100644
--- a/src/lab/exp5/Procedure.html
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@@ -43,7 +43,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp5/Quizzes.html b/src/lab/exp5/Quiz.html
similarity index 93%
rename from src/lab/exp5/Quizzes.html
rename to src/lab/exp5/Quiz.html
index 12455891..6da00226 100644
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@@ -73,7 +73,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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@@ -121,15 +121,15 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
 <!-- <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p> -->
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index e559a3cd..ecef78af 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index ccbc1d87..b2be2d4d 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index 0d9e8f98..bffba6fb 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,38 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-12-lightblue">Recursion</h1>
+
+
+							 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
index eccb9c72..38296307 100644
--- a/src/lab/exp6/Further Readings.html	
+++ b/src/lab/exp6/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index e7c21bce..73fe35c3 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p>
 
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 8693014b..39fa3fb9 100644
--- a/src/lab/exp6/Manual.html
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@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index d0c37ebc..497b3579 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Recursion using Computer Programming.
 	</p>
diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
index 5727b814..30ad2c6f 100644
--- a/src/lab/exp6/Procedure.html
+++ b/src/lab/exp6/Procedure.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp6/Quizzes.html b/src/lab/exp6/Quiz.html
similarity index 94%
rename from src/lab/exp6/Quizzes.html
rename to src/lab/exp6/Quiz.html
index ae278a48..cec01a60 100644
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+++ b/src/lab/exp6/Quiz.html
@@ -74,7 +74,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -122,10 +122,10 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 7e2949ba..73c3bac6 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index e4535295..4e1af9d8 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index cc4277d6..1cffba3a 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -89,15 +89,37 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1>
+
+			
+			 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index c5737a6d..ed485b64 100644
--- a/src/lab/exp7/Further Readings.html	
+++ b/src/lab/exp7/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <li>
 <a href="http://en.wikipedia.org/wiki/Problem_solving">http://en.wikipedia.org/wiki/Problem_solving</a>
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index 9e057f11..aa6edc56 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Let us consider the task of representing very large numbers in C. As we know we cannot store an intger of maximum value 2<sup>63</sup>-1 and minimum value -2<sup>63 </sup>sing a long long data type in C. But how do we represent numbers which are not in this range, say for example 10<sup>50</sup>.In one of the problems we ask you to do this and explain how it is done usually.
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index c5a4bdf3..2c457923 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -43,7 +43,7 @@
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 930586b6..453a7c82 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Advanced Arithmatic using Computer Programming.
 	</p>
diff --git a/src/lab/exp7/Procedure.html b/src/lab/exp7/Procedure.html
index 2c41c97f..ec585baa 100644
--- a/src/lab/exp7/Procedure.html
+++ b/src/lab/exp7/Procedure.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp7/Quizzes.html b/src/lab/exp7/Quiz.html
similarity index 94%
rename from src/lab/exp7/Quizzes.html
rename to src/lab/exp7/Quiz.html
index 22f69baa..a9fd55ea 100644
--- a/src/lab/exp7/Quizzes.html
+++ b/src/lab/exp7/Quiz.html
@@ -74,7 +74,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -122,10 +122,10 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index ce699ce9..cf5272df 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index a8363f90..043cd839 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index 5777b329..f1cd90d2 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,37 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Searching and Sorting</h1>
+
+
+			 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
index 42c8131d..a1545ac5 100644
--- a/src/lab/exp8/Further Readings.html	
+++ b/src/lab/exp8/Further Readings.html	
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index 03ff175e..65f829d8 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Searching and Sorting are very important areas in computer science. Efficient sorting algorithms are required for optimizing the use of other algorithms that require sorted lists to work correctly, for example to do binary search sorting is required.We present two problems here based on variant of binary search and sorting. Hope you will appreciate them.
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 04b60c35..932e367d 100644
--- a/src/lab/exp8/Objective.html
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 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Searching and Sorting using Computer Programming.
 	</p>
diff --git a/src/lab/exp8/Procedure.html b/src/lab/exp8/Procedure.html
index 97eb46cb..eeb002aa 100644
--- a/src/lab/exp8/Procedure.html
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@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp8/Quizzes.html b/src/lab/exp8/Quiz.html
similarity index 94%
rename from src/lab/exp8/Quizzes.html
rename to src/lab/exp8/Quiz.html
index bc5ef916..213494d9 100644
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@@ -74,7 +74,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -122,10 +122,10 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
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-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 6166b82f..5940ca4e 100644
--- a/src/lab/exp8/Theory.html
+++ b/src/lab/exp8/Theory.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Consider three numbers from the set say a,b,c. If either a+b&lt; c or b+c&lt; a or c+a&lt; b  then (a,b,c) cannot form a triangle. Lets state the problem little differently for each pair (a,b) we want to find out how many numbers c are there such that a+b &lt; c. We consider each pair (a,b) and search for how many numbers are there which are greater than a+b. This can be done easily using binary search. Sort the array and consider the interval (start,end). If arr[mid]&gt; a+b then (mid-end+1) numbers are greater than a+b otherwise if arr[mid]&lt; a+b then we don't add anything to the result and search in (start,mid-1).
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index 2fec8e42..8800cb2e 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h1-lightblue">Permutations</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 63768bf8..55bd74e6 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,37 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Permutations</h1><a href="http://209.211.220.205/feedback/feedback.html">Feedback</a>						</div>
+<h1 class="text-h1-lightblue">Permutations</h1>
+
+
+		 <p><b>Dear User</b>,</p>
+
+                                <p>
+                                    Thanks for using Virtual Labs. Your opinion is valuable to us. To help us improve, we'd like to ask you a few questions about your experience. It will only take 3 minutes and your answers will help us make Virtual Labs better for you and other users.
+                                </p>
+                                <br/>
+
+                                <a href="http://209.211.220.205/feedback/feedback.html" id="feedback-btn-link">
+                                    <button class="btn btn-default btn-lg" id="feedback-btn" type="button">Share Your Experience</button>
+                                </a>
+                                <br/>
+                                <br/>
+
+                                <p>
+                                    Thanks for your time !
+                                    <br/>
+                                    <b>The Virtual Labs Team</b>
+                                </p>
+
+</div>
 					</div>
 			</div>
 			<!-- =================================================================================================================================== -->
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
index 56fb1d3c..1a0fca57 100644
--- a/src/lab/exp9/Further Readings.html	
+++ b/src/lab/exp9/Further Readings.html	
@@ -43,7 +43,7 @@
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 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,15 +91,15 @@
 			
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experiment-article-section-8-content">
+<h1 class="text-h1-lightblue">Permutation</h1><div class="content" id="experiment-article-section-8-content">
 <ul>
 <!-- <li>
 <a href="http://en.wikipedia.org/wiki/
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index d598a1e5..9afd145d 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
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@@ -91,10 +91,10 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index 20acbb4b..b967cb99 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 838f9e52..31a454e2 100644
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+++ b/src/lab/exp9/Objective.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp9/Procedure.html b/src/lab/exp9/Procedure.html
index 6c7c7587..56c22fab 100644
--- a/src/lab/exp9/Procedure.html
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@@ -43,7 +43,7 @@
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+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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@@ -91,15 +91,15 @@
 			
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h2-lightblue">Permutation</h1><div class="content" id="experiment-article-section-7-content">
+<h1 class="text-h1-lightblue">Permutation</h1><div class="content" id="experiment-article-section-7-content">
 <p>
 		  Procedure for the experiment is as follows.
 		  </p><ol>
diff --git a/src/lab/exp9/Quizzes.html b/src/lab/exp9/Quiz.html
similarity index 95%
rename from src/lab/exp9/Quizzes.html
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@@ -74,7 +74,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quizzes.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quizzes </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 61e20e4f..37a21e05 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -43,7 +43,7 @@
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-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="../images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -91,10 +91,10 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> →<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br/></h2>
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diff --git a/src/lab/index.html b/src/lab/index.html
index a5090a4c..d623cae5 100644
--- a/src/lab/index.html
+++ b/src/lab/index.html
@@ -43,7 +43,7 @@
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                    <span class="icon-bar" style="background-color: #77BB41"></span>
 			                </button>
-			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/logo-new.png"/></a>
+			                <a class="navbar-brand main-logo-a" href="http://vlabs.ac.in/index.html"><img class="img-responsive main-logo" src="images/vlabs-color-small-moe.jpg"/></a>
 			            </div>			
 			                        
 			            <!-- Collect the nav links, forms, and other content for toggling -->
@@ -51,10 +51,10 @@
 			               
 			                <ul class="nav navbar-nav navbar-right menu-ul search-ul" style="position: relative; top: -5px;">
 			                	<li>
-			                		<form action="search-result.html" method="get">
-			                        	<!-- <input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
-			                        	<input type="submit" value="" class="search-button" /> -->
-			                        </form>
+			                		<!-- <form method="get" action="search-result.html">
+			                        	<input type="text" class="search-textbox" placeholder="SEARCH FOR A LAB" name="q" id="q"/>
+			                        	<input type="submit" value="" class="search-button" />
+			                        </form> -->
 			                	</li>
 			                </ul>
 			                
@@ -62,8 +62,10 @@
 			                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/">HOME</a>
 			                    </li>
-			                    
-			                    <li class="page-scroll menu-li ">
+		<!--	                    <li class="page-scroll menu-li menu-li-active">
+			                        <a class="menu-a menu-a-active" href="http://vlabs.ac.in/labs.html">ALL LABS</a>
+			                    </li>
+		-->	                    <li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/#partner">PARTNERS</a>
 			                    </li><li class="page-scroll menu-li ">
 			                        <a class="menu-a" href="http://vlabs.ac.in/#contact">CONTACT</a>
@@ -89,12 +91,12 @@
 			
 			<!-- =================================================================================================================================== -->
 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlabs.ac.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br/></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br/></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="http://209.211.220.205/feedback/feedback.html"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
@@ -156,6 +158,8 @@ <h4>Follow Us</h4>
 </div>
 </footer>
 
+
+
 </div> <!-- top div -->
 
 
@@ -213,4 +217,5 @@ <h4>Follow Us</h4>
 	</script>
 	
 
+
 </body><!-- jQuery --></html>
\ No newline at end of file

From 14c84bd6b09ca9484db75803bd14fe336b5da232 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Tue, 19 Jan 2021 10:36:05 +0530
Subject: [PATCH 11/22] added vlead logo

---
 src/lab/Courses Aligned.html     | 3 ++-
 src/lab/Feedback.html            | 3 ++-
 src/lab/Introduction.html        | 3 ++-
 src/lab/List of experiments.html | 3 ++-
 src/lab/Target Audience.html     | 5 +++--
 src/lab/exp1/Experiment.html     | 4 ++--
 src/lab/exp1/Feedback.html       | 3 +--
 src/lab/exp1/Introduction.html   | 4 ++--
 src/lab/exp1/Manual.html         | 4 ++--
 src/lab/exp1/Objective.html      | 4 ++--
 src/lab/exp1/Quiz.html           | 4 ++--
 src/lab/exp1/Theory.html         | 4 ++--
 src/lab/exp10/Experiment.html    | 4 ++--
 src/lab/exp10/Feedback.html      | 4 ++--
 src/lab/exp10/Introduction.html  | 4 ++--
 src/lab/exp10/Manual.html        | 4 ++--
 src/lab/exp10/Objective.html     | 4 ++--
 src/lab/exp10/Quiz.html          | 8 ++------
 src/lab/exp10/Theory.html        | 4 ++--
 src/lab/exp2/Experiment.html     | 4 ++--
 src/lab/exp2/Feedback.html       | 4 ++--
 src/lab/exp2/Introduction.html   | 4 ++--
 src/lab/exp2/Manual.html         | 4 ++--
 src/lab/exp2/Objective.html      | 4 ++--
 src/lab/exp2/Quiz.html           | 4 ++--
 src/lab/exp2/Theory.html         | 4 ++--
 src/lab/exp3/Experiment.html     | 4 ++--
 src/lab/exp3/Feedback.html       | 4 ++--
 src/lab/exp3/Introduction.html   | 4 ++--
 src/lab/exp3/Manual.html         | 4 ++--
 src/lab/exp3/Objective.html      | 4 ++--
 src/lab/exp3/Quiz.html           | 4 ++--
 src/lab/exp3/Theory.html         | 4 ++--
 src/lab/exp4/Experiment.html     | 4 ++--
 src/lab/exp4/Feedback.html       | 4 ++--
 src/lab/exp4/Introduction.html   | 4 ++--
 src/lab/exp4/Manual.html         | 4 ++--
 src/lab/exp4/Objective.html      | 4 ++--
 src/lab/exp4/Quiz.html           | 4 ++--
 src/lab/exp4/Theory.html         | 4 ++--
 src/lab/exp5/Experiment.html     | 7 ++++---
 src/lab/exp5/Feedback.html       | 4 ++--
 src/lab/exp5/Introduction.html   | 4 ++--
 src/lab/exp5/Manual.html         | 4 ++--
 src/lab/exp5/Objective.html      | 4 ++--
 src/lab/exp5/Quiz.html           | 4 ++--
 src/lab/exp5/Theory.html         | 4 ++--
 src/lab/exp6/Experiment.html     | 4 ++--
 src/lab/exp6/Feedback.html       | 4 ++--
 src/lab/exp6/Introduction.html   | 4 ++--
 src/lab/exp6/Manual.html         | 4 ++--
 src/lab/exp6/Objective.html      | 4 ++--
 src/lab/exp6/Quiz.html           | 4 ++--
 src/lab/exp6/Theory.html         | 4 ++--
 src/lab/exp7/Experiment.html     | 4 ++--
 src/lab/exp7/Feedback.html       | 4 ++--
 src/lab/exp7/Introduction.html   | 4 ++--
 src/lab/exp7/Manual.html         | 4 ++--
 src/lab/exp7/Objective.html      | 4 ++--
 src/lab/exp7/Quiz.html           | 4 ++--
 src/lab/exp7/Theory.html         | 4 ++--
 src/lab/exp8/Experiment.html     | 4 ++--
 src/lab/exp8/Feedback.html       | 4 ++--
 src/lab/exp8/Introduction.html   | 4 ++--
 src/lab/exp8/Manual.html         | 4 ++--
 src/lab/exp8/Objective.html      | 4 ++--
 src/lab/exp8/Quiz.html           | 4 ++--
 src/lab/exp8/Theory.html         | 4 ++--
 src/lab/exp9/Experiment.html     | 4 ++--
 src/lab/exp9/Feedback.html       | 4 ++--
 src/lab/exp9/Introduction.html   | 2 +-
 src/lab/exp9/Manual.html         | 2 +-
 src/lab/exp9/Objective.html      | 2 +-
 src/lab/exp9/Quiz.html           | 2 +-
 src/lab/exp9/Theory.html         | 2 +-
 75 files changed, 147 insertions(+), 146 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index c4c5c2c8..4665a0c1 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
@@ -96,7 +96,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index c2b3733b..67beec9b 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -96,7 +96,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Feedback</h3></a>						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 3d246f24..51a28753 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -96,7 +96,8 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
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 <br/><p>The experiments are targeted at students who have just finished a first course in programming. Knowledge of writing programs in any programming language is expected. No prior experience with data structuers is required. 
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Numerical Representation</h1>
 
 
 
diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
 <br/>
 How are number represented in C? In this lab we help you understand how numbers are repsented in C and based on that two problems are given.The 1<sup>st</sup> is simple to solve while the second one is little tricky.
diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
index d18e061a..987e778b 100644
--- a/src/lab/exp1/Objective.html
+++ b/src/lab/exp1/Objective.html
@@ -92,12 +92,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Numerical Representation using Computer Programming.
 	</p>
diff --git a/src/lab/exp1/Quiz.html b/src/lab/exp1/Quiz.html
index 7f61ecfc..a7a34616 100644
--- a/src/lab/exp1/Quiz.html
+++ b/src/lab/exp1/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
index 046878c1..dca0f27b 100644
--- a/src/lab/exp1/Theory.html
+++ b/src/lab/exp1/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-hq-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">Numerical Representation</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
index 597dbc07..baae24b0 100644
--- a/src/lab/exp10/Experiment.html
+++ b/src/lab/exp10/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Sequences</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Sequences</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
index 8e0a4752..d8713696 100644
--- a/src/lab/exp10/Feedback.html
+++ b/src/lab/exp10/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Sequences</h1>
+<h1 class="text-h2-lightblue">Sequences</h1>
 
 
 					 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp10/Introduction.html b/src/lab/exp10/Introduction.html
index 1d4d2d39..41bc5a0f 100644
--- a/src/lab/exp10/Introduction.html
+++ b/src/lab/exp10/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <br/>
 <p> 
 In this experiment we introduce you to two very famous algorithmic problems.One problem is longest continuous decreasing subsequence problem and other one is longest increasing subsequence problem.
diff --git a/src/lab/exp10/Manual.html b/src/lab/exp10/Manual.html
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 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp10/Objective.html b/src/lab/exp10/Objective.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <p>
 	To learn to solve problems related to Sequences using Computer Programming.
 	</p>
diff --git a/src/lab/exp10/Quiz.html b/src/lab/exp10/Quiz.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
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 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp10/Theory.html b/src/lab/exp10/Theory.html
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <h2>Problem 1</h2>
 <br/>
 <p>
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
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 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Beauty of Numbers</h1>
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1>
 
 
 
diff --git a/src/lab/exp2/Introduction.html b/src/lab/exp2/Introduction.html
index ea072da3..e638ed93 100644
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Many students in some class or either might have been interested in Number theory as it is
diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
index a176df1b..d8f74bc9 100644
--- a/src/lab/exp2/Manual.html
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p>
diff --git a/src/lab/exp2/Objective.html b/src/lab/exp2/Objective.html
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
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-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Number Theory using Computer Programming.
 	</p>
diff --git a/src/lab/exp2/Quiz.html b/src/lab/exp2/Quiz.html
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@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp2/Theory.html b/src/lab/exp2/Theory.html
index b539ab1d..70b678f8 100644
--- a/src/lab/exp2/Theory.html
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Beauty of Numbers</h1>
+<h1 class="text-h2-lightblue">Beauty of Numbers</h1>
 <br/><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
index 434c8c85..d877212d 100644
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
index db9e5e39..9e825e42 100644
--- a/src/lab/exp3/Feedback.html
+++ b/src/lab/exp3/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1>
+<h1 class="text-h2-lightblue">More on Numbers</h1>
 
 						 <p><b>Dear User</b>,</p>
 
diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
index 9f66256b..c4d6da2f 100644
--- a/src/lab/exp3/Introduction.html
+++ b/src/lab/exp3/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-1-content">
 <p> 
 Many students in some class or either might have been interested in Number theory as it is so much fun in solving those riddles.Here we present two problems to refresh your skills. Hope you will love them. And the difference is that you may not have learnt computer programming back then but you know some computer programming now, so you can use the computer and program the task. 
 </p>
diff --git a/src/lab/exp3/Manual.html b/src/lab/exp3/Manual.html
index cf6a4069..daec6ba7 100644
--- a/src/lab/exp3/Manual.html
+++ b/src/lab/exp3/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp3/Objective.html b/src/lab/exp3/Objective.html
index 8e37fa3a..ab7da959 100644
--- a/src/lab/exp3/Objective.html
+++ b/src/lab/exp3/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Number Theory using Computer Programming.
 	</p>
diff --git a/src/lab/exp3/Quiz.html b/src/lab/exp3/Quiz.html
index f50a612e..63f92934 100644
--- a/src/lab/exp3/Quiz.html
+++ b/src/lab/exp3/Quiz.html
@@ -125,14 +125,14 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 
 
 
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp3/Theory.html b/src/lab/exp3/Theory.html
index 99135a6d..4717d1da 100644
--- a/src/lab/exp3/Theory.html
+++ b/src/lab/exp3/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">More on Numbers</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Lets look at the remainder after with 9 for 10,100,1000,10000 etc. It is equal to 1 in all the cases. It is not difficult of see that for multiples of these numbers, the remainder after division with 9 will only depend on the multiple. So, for 20,40,800,500,7000,2000 etc., the remainder after division with 9 are 2,4,8,5,7 and 2. Now, any number, say N, written as sequence, WXYZ can be expressed as:
diff --git a/src/lab/exp4/Experiment.html b/src/lab/exp4/Experiment.html
index e5c19f27..665287f0 100644
--- a/src/lab/exp4/Experiment.html
+++ b/src/lab/exp4/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
index 7e24ccf5..12ebe372 100644
--- a/src/lab/exp4/Feedback.html
+++ b/src/lab/exp4/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1>
+<h1 class="text-h2-lightblue">Factorials</h1>
 
 
 					 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp4/Introduction.html b/src/lab/exp4/Introduction.html
index 0b448144..5f14ee8a 100644
--- a/src/lab/exp4/Introduction.html
+++ b/src/lab/exp4/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h11-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p>
 Although the factorial function has its roots in combinatorics, formulas involving factorials occur in many areas of mathematics.<br/>
diff --git a/src/lab/exp4/Manual.html b/src/lab/exp4/Manual.html
index 96b510c9..8f80da78 100644
--- a/src/lab/exp4/Manual.html
+++ b/src/lab/exp4/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp4/Objective.html b/src/lab/exp4/Objective.html
index 0a449f12..ea4472ff 100644
--- a/src/lab/exp4/Objective.html
+++ b/src/lab/exp4/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Factorials using Computer Programming.
 	</p>
diff --git a/src/lab/exp4/Quiz.html b/src/lab/exp4/Quiz.html
index 4cf19a0e..d7329fff 100644
--- a/src/lab/exp4/Quiz.html
+++ b/src/lab/exp4/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp4/Theory.html b/src/lab/exp4/Theory.html
index fab71ae2..87b4be3a 100644
--- a/src/lab/exp4/Theory.html
+++ b/src/lab/exp4/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">Factorials</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 We shall try to calculate the factorial of a number  and then find out the number of digits in it.<br/>
diff --git a/src/lab/exp5/Experiment.html b/src/lab/exp5/Experiment.html
index 7e6e9d4e..c95b5040 100644
--- a/src/lab/exp5/Experiment.html
+++ b/src/lab/exp5/Experiment.html
@@ -1,5 +1,6 @@
 <!DOCTYPE html>
-<html lang="en"><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
+<html lang="en"><head><!--Google Tag Manager-->
+<script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
 new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
@@ -94,12 +95,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
index fe05f08b..2e52dbc9 100644
--- a/src/lab/exp5/Feedback.html
+++ b/src/lab/exp5/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1>
+<h1 class="text-h2-lightblue">String Operations</h1>
 
 
 			 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
index 5e720c0f..fe95a3d9 100644
--- a/src/lab/exp5/Introduction.html
+++ b/src/lab/exp5/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 String is traditionally a sequence of characters, either as a literal constant or as some kind of variable. The latter may allow its elements to be mutated and/or the length changed, or it may be fixed (after creation). A string is generally understood as a data type and is often implemented as a byte (or word) array that stores a sequence of elements, typically characters, using some character encoding. A string may also denote more general array data types and/or other sequential data types and structures; terms such as byte string, or more general, string of datatype, or datatype-string, are sometimes used to denote strings in which the stored data does not(necessarily) represent text. 
diff --git a/src/lab/exp5/Manual.html b/src/lab/exp5/Manual.html
index e150ffe0..a6778e75 100644
--- a/src/lab/exp5/Manual.html
+++ b/src/lab/exp5/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
 	</p>
diff --git a/src/lab/exp5/Objective.html b/src/lab/exp5/Objective.html
index a50dab33..ebbd4260 100644
--- a/src/lab/exp5/Objective.html
+++ b/src/lab/exp5/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Strings using Computer Programming.
 	</p>
diff --git a/src/lab/exp5/Quiz.html b/src/lab/exp5/Quiz.html
index 6da00226..adf7d332 100644
--- a/src/lab/exp5/Quiz.html
+++ b/src/lab/exp5/Quiz.html
@@ -124,12 +124,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-4-content">
 <!-- <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p> -->
diff --git a/src/lab/exp5/Theory.html b/src/lab/exp5/Theory.html
index ecef78af..ae5b9c1a 100644
--- a/src/lab/exp5/Theory.html
+++ b/src/lab/exp5/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">String Operations</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp6/Experiment.html b/src/lab/exp6/Experiment.html
index b2be2d4d..e78ba768 100644
--- a/src/lab/exp6/Experiment.html
+++ b/src/lab/exp6/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp6/Feedback.html b/src/lab/exp6/Feedback.html
index bffba6fb..e95a5d9c 100644
--- a/src/lab/exp6/Feedback.html
+++ b/src/lab/exp6/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-12-lightblue">Recursion</h1>
+<h1 class="text-2-lightblue">Recursion</h1>
 
 
 							 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
index 73fe35c3..285a9092 100644
--- a/src/lab/exp6/Introduction.html
+++ b/src/lab/exp6/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p>
 
diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
index 39fa3fb9..e8cb2327 100644
--- a/src/lab/exp6/Manual.html
+++ b/src/lab/exp6/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp6/Objective.html b/src/lab/exp6/Objective.html
index 497b3579..c336b648 100644
--- a/src/lab/exp6/Objective.html
+++ b/src/lab/exp6/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Recursion using Computer Programming.
 	</p>
diff --git a/src/lab/exp6/Quiz.html b/src/lab/exp6/Quiz.html
index cec01a60..a93f377b 100644
--- a/src/lab/exp6/Quiz.html
+++ b/src/lab/exp6/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
index 73c3bac6..1db7018c 100644
--- a/src/lab/exp6/Theory.html
+++ b/src/lab/exp6/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Recursion</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">Recursion</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Recursion can be applied to a problem if the problem for the given input can be expressed as dependent upon the solution of the same problem for simpler inputs. One has to hardcode the solution for some simple cases, so that this recursion does not go on endlessly. Now, the given problem of expressing a weight(W) as a sum of other weights can be expressed as the problem of choosing one weight(w) such that it is not greater than W and then solving the same problem for the remaining weight W-w. For this particular problem, the solution can be expressed easily by choosing all the possible multiples(m) of a given unit, 2^(i),   iteratively for all the values of m for which m*2^(i) is less than W, and subsequently solving the same problem for the remaining weight, W-w, and for multiples of weights for higher order. So, our recursion function would be needing 2 variable, one signifying multiples of which order of weight should be used this time and other signifying remaining weight to be accrued.
diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
index 4e1af9d8..ca10b44c 100644
--- a/src/lab/exp7/Experiment.html
+++ b/src/lab/exp7/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp7/Feedback.html b/src/lab/exp7/Feedback.html
index 1cffba3a..acd095e3 100644
--- a/src/lab/exp7/Feedback.html
+++ b/src/lab/exp7/Feedback.html
@@ -92,12 +92,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1>
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1>
 
 			
 			 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
index aa6edc56..bee44665 100644
--- a/src/lab/exp7/Introduction.html
+++ b/src/lab/exp7/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Let us consider the task of representing very large numbers in C. As we know we cannot store an intger of maximum value 2<sup>63</sup>-1 and minimum value -2<sup>63 </sup>sing a long long data type in C. But how do we represent numbers which are not in this range, say for example 10<sup>50</sup>.In one of the problems we ask you to do this and explain how it is done usually.
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
index 2c457923..9acab278 100644
--- a/src/lab/exp7/Manual.html
+++ b/src/lab/exp7/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp7/Objective.html b/src/lab/exp7/Objective.html
index 453a7c82..fca029ad 100644
--- a/src/lab/exp7/Objective.html
+++ b/src/lab/exp7/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Advanced Arithmatic using Computer Programming.
 	</p>
diff --git a/src/lab/exp7/Quiz.html b/src/lab/exp7/Quiz.html
index a9fd55ea..33ba31b9 100644
--- a/src/lab/exp7/Quiz.html
+++ b/src/lab/exp7/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp7/Theory.html b/src/lab/exp7/Theory.html
index cf5272df..a700ad27 100644
--- a/src/lab/exp7/Theory.html
+++ b/src/lab/exp7/Theory.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <br/>
 <p>
diff --git a/src/lab/exp8/Experiment.html b/src/lab/exp8/Experiment.html
index 043cd839..fd951b52 100644
--- a/src/lab/exp8/Experiment.html
+++ b/src/lab/exp8/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp8/Feedback.html b/src/lab/exp8/Feedback.html
index f1cd90d2..94993a61 100644
--- a/src/lab/exp8/Feedback.html
+++ b/src/lab/exp8/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Searching and Sorting</h1>
+<h1 class="text-h2-lightblue">Searching and Sorting</h1>
 
 
 			 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp8/Introduction.html b/src/lab/exp8/Introduction.html
index 65f829d8..0773687f 100644
--- a/src/lab/exp8/Introduction.html
+++ b/src/lab/exp8/Introduction.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-1-content">
 <br/>
 <p> 
 Searching and Sorting are very important areas in computer science. Efficient sorting algorithms are required for optimizing the use of other algorithms that require sorted lists to work correctly, for example to do binary search sorting is required.We present two problems here based on variant of binary search and sorting. Hope you will appreciate them.
diff --git a/src/lab/exp8/Manual.html b/src/lab/exp8/Manual.html
index fb58b4fd..d3bfcb0a 100644
--- a/src/lab/exp8/Manual.html
+++ b/src/lab/exp8/Manual.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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 							<!--edit -->
-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-5-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-5-content">
 <p> 
 	        For each problem you have to write a program in C or C++. Each question is evaluted on test cases. An answer is correct only when all the test cases are cleared. 
           </p>
diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
index 932e367d..c0b774a6 100644
--- a/src/lab/exp8/Objective.html
+++ b/src/lab/exp8/Objective.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
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-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-3-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-3-content">
 <p>
 	To learn to solve problems related to Searching and Sorting using Computer Programming.
 	</p>
diff --git a/src/lab/exp8/Quiz.html b/src/lab/exp8/Quiz.html
index 213494d9..b85f6c0f 100644
--- a/src/lab/exp8/Quiz.html
+++ b/src/lab/exp8/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
@@ -135,7 +135,7 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
 <div class="col-md-10 lab-list-col-10">
 							
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-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-6-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-6-content">
 <p>
 <!-- <form method="post" name="quiz" onsubmit='evaluate()' target="_blank">
 <ol>
diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
index 5940ca4e..648669be 100644
--- a/src/lab/exp8/Theory.html
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@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-2-content">
+<h1 class="text-h2-lightblue">Searching and Sorting</h1><div class="content" id="experiment-article-section-2-content">
 <h2>Problem 1</h2>
 <p>
 Consider three numbers from the set say a,b,c. If either a+b&lt; c or b+c&lt; a or c+a&lt; b  then (a,b,c) cannot form a triangle. Lets state the problem little differently for each pair (a,b) we want to find out how many numbers c are there such that a+b &lt; c. We consider each pair (a,b) and search for how many numbers are there which are greater than a+b. This can be done easily using binary search. Sort the array and consider the interval (start,end). If arr[mid]&gt; a+b then (mid-end+1) numbers are greater than a+b otherwise if arr[mid]&lt; a+b then we don't add anything to the result and search in (start,mid-1).
diff --git a/src/lab/exp9/Experiment.html b/src/lab/exp9/Experiment.html
index 8800cb2e..5bf62cb9 100644
--- a/src/lab/exp9/Experiment.html
+++ b/src/lab/exp9/Experiment.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Permutations</h1><div class="content" id="experiment-article-section-4-content">
+<h1 class="text-h2-lightblue">Permutations</h1><div class="content" id="experiment-article-section-4-content">
 <p>
 <a href="lab.html" target="_blank">Go to Lab (Click here)</a>
 </p>
diff --git a/src/lab/exp9/Feedback.html b/src/lab/exp9/Feedback.html
index 55bd74e6..ab90bfca 100644
--- a/src/lab/exp9/Feedback.html
+++ b/src/lab/exp9/Feedback.html
@@ -94,12 +94,12 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
 							<!--edit -->
-<h1 class="text-h1-lightblue">Permutations</h1>
+<h1 class="text-h2-lightblue">Permutations</h1>
 
 
 		 <p><b>Dear User</b>,</p>
diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
index 9afd145d..352c7ebb 100644
--- a/src/lab/exp9/Introduction.html
+++ b/src/lab/exp9/Introduction.html
@@ -94,7 +94,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
index b967cb99..7f269f9b 100644
--- a/src/lab/exp9/Manual.html
+++ b/src/lab/exp9/Manual.html
@@ -94,7 +94,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp9/Objective.html b/src/lab/exp9/Objective.html
index 31a454e2..a6ead93b 100644
--- a/src/lab/exp9/Objective.html
+++ b/src/lab/exp9/Objective.html
@@ -94,7 +94,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp9/Quiz.html b/src/lab/exp9/Quiz.html
index 52bc298e..1fc0a062 100644
--- a/src/lab/exp9/Quiz.html
+++ b/src/lab/exp9/Quiz.html
@@ -125,7 +125,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 
 
diff --git a/src/lab/exp9/Theory.html b/src/lab/exp9/Theory.html
index 37a21e05..59a349f3 100644
--- a/src/lab/exp9/Theory.html
+++ b/src/lab/exp9/Theory.html
@@ -94,7 +94,7 @@
 				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a> <i aria-hidden="true" class="fa fa-angle-right" style="font-size: 30px; padding-right: 4px;"></i> <a class="sidebar-a" href="../List of experiments.html">Experiments</a><br/></h2>
 					
 					<div class="row">
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
+						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							

From 0b95c818661f7c28501aa53740154e860c468e5a Mon Sep 17 00:00:00 2001
From: balammaboya <balamma38@gmail.com>
Date: Tue, 21 Sep 2021 19:22:03 +0530
Subject: [PATCH 12/22] fixed compile issue

---
 src/lab/exp2/Hints1/Hint_4.html | 2 +-
 src/lab/exp2/Hints2/Hint_4.html | 2 +-
 src/lab/exp4/Hints1/Hint_4.html | 2 +-
 src/lab/exp4/Hints2/Hint_4.html | 2 +-
 src/lab/exp5/Hints1/Hint_4.html | 2 +-
 src/lab/exp5/Hints2/Hint_4.html | 2 +-
 src/lab/exp6/Hints1/Hint_4.html | 2 +-
 src/lab/exp6/Hints2/Hint_4.html | 2 +-
 src/lab/exp7/Hints1/Hint_4.html | 2 +-
 src/lab/exp7/Hints2/Hint_4.html | 2 +-
 src/lab/exp8/Hints1/Hint_4.html | 2 +-
 src/lab/exp8/Hints2/Hint_4.html | 2 +-
 src/lab/exp9/Hints1/Hint_4.html | 2 +-
 src/lab/exp9/Hints2/Hint_4.html | 2 +-
 14 files changed, 14 insertions(+), 14 deletions(-)

diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 8acead46..87395d5a 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -4,7 +4,7 @@
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
-main(){
+int main(){
 	/*perfect number or not*/
 	
 	long long n;
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 640bcdf9..bcb5a060 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -3,7 +3,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+int main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 767d7506..2617bca9 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -4,7 +4,7 @@
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
-main(){
+int main(){
 int N,i;
 double result = 0;
 scanf("%d",&amp;N);
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index a2c3724f..a6cf86b6 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -3,7 +3,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+int main(){
 	 int N;
 
 	 scanf("%d",&amp;N);
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index d7c48cca..70278c4a 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -8,7 +8,7 @@
 int isAlphabet(char x){
 	return (x&gt;='a' &amp;&amp; x&lt;='z')||(x&gt;='A' &amp;&amp; x&lt;='Z');
 }
-main(){
+int main(){
 char s[1001];
 scanf("%[^\n]s",s);
 int i=0,j=strlen(s)-1;
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 84e4d612..7aa6dd0c 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -3,7 +3,7 @@
 j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+int main(){
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 0d2041d6..5feeda68 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -18,7 +18,7 @@
 	return ans;
 	
 }
-main(){
+int main(){
 	int W;
 	scanf("%d%d",&amp;N,&amp;W);
 
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 8d6a9955..d16bd571 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -10,7 +10,7 @@
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
 }
 
-main(){
+int main(){
 	int N;
 	scanf("%d",&amp;N);
 	int weights[N],i,D;
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index 808bacf7..22f0fd60 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -4,7 +4,7 @@
 'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
-main(){
+int main(){
 	char s1[51],s2[51];
 	scanf("%s %s",s1,s2);
 	char sum[52];
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index d427d49c..cca92348 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -21,7 +21,7 @@
 	}
 
 }
-main(){
+int main(){
 	scanf("%d",&amp;N);
 	printf("%.4lf\n",mysqrt(1,N));
 return 0;
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index ad5a0bc5..f4db8940 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -16,7 +16,7 @@
 	else
 		return search(a,mid+1,end,num);
 }
-main(){
+int main(){
 	int N;
 	scanf("%d",&amp;N);
 	int arr[N];
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 216e8f4d..40bc4cf7 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -5,7 +5,7 @@
 })(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
-main(){
+int main(){
 	int N;
 	char str[1000001];
 	scanf("%s",str);
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 3a948543..42a7210d 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -14,7 +14,7 @@
            */
 	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
 }
-main(){
+int main(){
 	int N;
 	scanf("%d",&amp;N);
 	int weight[N],i;
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index 9594703b..deeee350 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -17,7 +17,7 @@
 return a+b;
 
 }
-main(){
+int main(){
 int i;
 scanf("%d",&amp;N);
 int weights[N];

From 833d635eb4d921c7e7430960e575f26b5108d467 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:06:48 +0530
Subject: [PATCH 13/22] updated Hint files for the simulation

---
 src/lab/exp1/Hints1/Hint_0.html  |  6 +++++-
 src/lab/exp1/Hints1/Hint_1.html  |  6 +++++-
 src/lab/exp1/Hints1/Hint_2.html  |  6 +++++-
 src/lab/exp1/Hints1/Hint_3.html  |  6 +++++-
 src/lab/exp1/Hints1/Hint_4.html  |  8 ++++++--
 src/lab/exp1/Hints2/Hint_0.html  |  6 +++++-
 src/lab/exp1/Hints2/Hint_1.html  |  7 ++++++-
 src/lab/exp1/Hints2/Hint_2.html  |  7 ++++++-
 src/lab/exp1/Hints2/Hint_3.html  |  7 ++++++-
 src/lab/exp1/Hints2/Hint_4.html  |  7 ++++++-
 src/lab/exp10/Hints1/Hint_0.html |  6 +++++-
 src/lab/exp10/Hints1/Hint_1.html |  9 +++++++--
 src/lab/exp10/Hints1/Hint_2.html | 19 ++++++++++++-------
 src/lab/exp10/Hints1/Hint_3.html |  7 ++++++-
 src/lab/exp10/Hints1/Hint_4.html |  7 ++++++-
 src/lab/exp10/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp10/Hints2/Hint_1.html |  9 +++++++--
 src/lab/exp10/Hints2/Hint_2.html | 19 ++++++++++++-------
 src/lab/exp10/Hints2/Hint_3.html |  6 +++++-
 src/lab/exp10/Hints2/Hint_4.html |  6 +++++-
 20 files changed, 125 insertions(+), 35 deletions(-)

diff --git a/src/lab/exp1/Hints1/Hint_0.html b/src/lab/exp1/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp1/Hints1/Hint_0.html
+++ b/src/lab/exp1/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints1/Hint_1.html b/src/lab/exp1/Hints1/Hint_1.html
index 4e99e5e8..d88b3a95 100755
--- a/src/lab/exp1/Hints1/Hint_1.html
+++ b/src/lab/exp1/Hints1/Hint_1.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
+<html><head>
+	
+</head>
+<body>
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_2.html b/src/lab/exp1/Hints1/Hint_2.html
index 37e64644..7c82581d 100755
--- a/src/lab/exp1/Hints1/Hint_2.html
+++ b/src/lab/exp1/Hints1/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
+<html><head>
+  
+</head>
+<body>
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_3.html b/src/lab/exp1/Hints1/Hint_3.html
index 1d30ff42..36e5ad65 100755
--- a/src/lab/exp1/Hints1/Hint_3.html
+++ b/src/lab/exp1/Hints1/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
+<html><head>
+	
+</head>
+<body>
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
diff --git a/src/lab/exp1/Hints1/Hint_4.html b/src/lab/exp1/Hints1/Hint_4.html
index aee22894..8421a62c 100755
--- a/src/lab/exp1/Hints1/Hint_4.html
+++ b/src/lab/exp1/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
+<html><head>
+	
+</head>
+<body>
+<pre> 
 #include&lt;stdio.h&gt;
 int main(){
 
@@ -13,4 +17,4 @@
 return 0;
 }
 </pre>
-</body></html>
\ No newline at end of file
+</body></html>	
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_0.html b/src/lab/exp1/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp1/Hints2/Hint_0.html
+++ b/src/lab/exp1/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp1/Hints2/Hint_1.html b/src/lab/exp1/Hints2/Hint_1.html
index 16de6760..4ace2b0b 100755
--- a/src/lab/exp1/Hints2/Hint_1.html
+++ b/src/lab/exp1/Hints2/Hint_1.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+<pre>
+#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_2.html b/src/lab/exp1/Hints2/Hint_2.html
index ebf2fd0a..b08c19a4 100755
--- a/src/lab/exp1/Hints2/Hint_2.html
+++ b/src/lab/exp1/Hints2/Hint_2.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>
+		#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_3.html b/src/lab/exp1/Hints2/Hint_3.html
index e3e7c7fb..3786f8c2 100755
--- a/src/lab/exp1/Hints2/Hint_3.html
+++ b/src/lab/exp1/Hints2/Hint_3.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>
+		#include&lt;stdio.h&gt;
 int main(){
 
 -&gt;scan the input 
diff --git a/src/lab/exp1/Hints2/Hint_4.html b/src/lab/exp1/Hints2/Hint_4.html
index 8af1c4a2..5629e98b 100755
--- a/src/lab/exp1/Hints2/Hint_4.html
+++ b/src/lab/exp1/Hints2/Hint_4.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head> 
+<body>
+<pre>
+#include&lt;stdio.h&gt;
 main(){
 int N;
 	scanf("%d",&amp;N);
diff --git a/src/lab/exp10/Hints1/Hint_0.html b/src/lab/exp10/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp10/Hints1/Hint_0.html
+++ b/src/lab/exp10/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_1.html b/src/lab/exp10/Hints1/Hint_1.html
index 60d359cc..e632a326 100755
--- a/src/lab/exp10/Hints1/Hint_1.html
+++ b/src/lab/exp10/Hints1/Hint_1.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>
+    #include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
@@ -11,7 +16,7 @@
   variables 
 -&gt; print the maximum size of decreasing 
   subsequence
-return 0;	
+return 0; 
 }
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_2.html b/src/lab/exp10/Hints1/Hint_2.html
index 62bbe92c..ff080125 100755
--- a/src/lab/exp10/Hints1/Hint_2.html
+++ b/src/lab/exp10/Hints1/Hint_2.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>
+    #include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
@@ -10,14 +15,14 @@
  -&gt;curr_size=1
  -&gt;max_size = 0
  for i=1 to N:
-	 if(arr[i]&lt;arr[i-1])
-		-&gt;update max_size, curr_size
-	  else
-		  -&gt;update curr_size
-	
+   if(arr[i]&lt;arr[i-1])
+    -&gt;update max_size, curr_size
+    else
+      -&gt;update curr_size
+  
 -&gt; print the maximum size of decreasing 
   subsequence
-return 0;	
+return 0; 
 }
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints1/Hint_3.html b/src/lab/exp10/Hints1/Hint_3.html
index bc3ae485..4ff85b3c 100755
--- a/src/lab/exp10/Hints1/Hint_3.html
+++ b/src/lab/exp10/Hints1/Hint_3.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>
+		#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare N and scan N
 -&gt;declare an array of size of N 
diff --git a/src/lab/exp10/Hints1/Hint_4.html b/src/lab/exp10/Hints1/Hint_4.html
index 6f299b38..29ce28f7 100755
--- a/src/lab/exp10/Hints1/Hint_4.html
+++ b/src/lab/exp10/Hints1/Hint_4.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+<pre>
+#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int main(){
 int num;
diff --git a/src/lab/exp10/Hints2/Hint_0.html b/src/lab/exp10/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp10/Hints2/Hint_0.html
+++ b/src/lab/exp10/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_1.html b/src/lab/exp10/Hints2/Hint_1.html
index ce3418c8..70fa0ee9 100755
--- a/src/lab/exp10/Hints2/Hint_1.html
+++ b/src/lab/exp10/Hints2/Hint_1.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>
+    #include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
@@ -11,6 +16,6 @@
    length of the longest increasing 
    subsequence 
 }
-	
+  
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_2.html b/src/lab/exp10/Hints2/Hint_2.html
index 8a68aec9..51bdb23c 100755
--- a/src/lab/exp10/Hints2/Hint_2.html
+++ b/src/lab/exp10/Hints2/Hint_2.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>
+    #include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
@@ -7,16 +12,16 @@
    size of N to implement the 
    recursive formula
   for i=0 to N
-	  -&gt;Initialise best[i]
-	  for j=0 to i-1
-		if arr[i]&lt;arr[j]
-			best[i] = max(best[i],best[j]+1)
-	  -&gt;Try to update the answer
+    -&gt;Initialise best[i]
+    for j=0 to i-1
+    if arr[i]&lt;arr[j]
+      best[i] = max(best[i],best[j]+1)
+    -&gt;Try to update the answer
  -&gt;Implement the recursive formula
    in the theory and report the 
    length of the longest increasing 
    subsequence 
 }
-	
+  
 </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp10/Hints2/Hint_3.html b/src/lab/exp10/Hints2/Hint_3.html
index 1a51a348..75415719 100755
--- a/src/lab/exp10/Hints2/Hint_3.html
+++ b/src/lab/exp10/Hints2/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
 main(){
 -&gt;declare and scan N
 -&gt; declare an array of size N 
diff --git a/src/lab/exp10/Hints2/Hint_4.html b/src/lab/exp10/Hints2/Hint_4.html
index 00e41d29..694f2a78 100755
--- a/src/lab/exp10/Hints2/Hint_4.html
+++ b/src/lab/exp10/Hints2/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 main(){
 int N;

From e1de930960db2a2fcf599fe0e001883944ef8958 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:21:16 +0530
Subject: [PATCH 14/22] updated hint files for the simulations

---
 src/lab/exp2/Hints1/Hint_0.html |  7 +++++--
 src/lab/exp2/Hints1/Hint_1.html |  6 +++++-
 src/lab/exp2/Hints1/Hint_2.html | 10 +++++++---
 src/lab/exp2/Hints1/Hint_3.html | 10 +++++++---
 src/lab/exp2/Hints1/Hint_4.html |  6 +++++-
 src/lab/exp2/Hints1/Hint_5.html |  8 ++++++--
 src/lab/exp2/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp2/Hints2/Hint_1.html |  8 ++++++--
 src/lab/exp2/Hints2/Hint_2.html |  8 ++++++--
 src/lab/exp2/Hints2/Hint_3.html |  8 ++++++--
 src/lab/exp2/Hints2/Hint_4.html | 15 +++++----------
 src/lab/exp2/Hints2/Hint_5.html |  8 ++++++--
 12 files changed, 69 insertions(+), 31 deletions(-)

diff --git a/src/lab/exp2/Hints1/Hint_0.html b/src/lab/exp2/Hints1/Hint_0.html
index 5d79d7e1..caeaf8b1 100755
--- a/src/lab/exp2/Hints1/Hint_0.html
+++ b/src/lab/exp2/Hints1/Hint_0.html
@@ -1,3 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre> 
-</pre>
+<html><head>
+	
+</head>
+<body>
+<pre> </pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints1/Hint_1.html b/src/lab/exp2/Hints1/Hint_1.html
index f0cac8d6..79e2bd9f 100755
--- a/src/lab/exp2/Hints1/Hint_1.html
+++ b/src/lab/exp2/Hints1/Hint_1.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+<pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
diff --git a/src/lab/exp2/Hints1/Hint_2.html b/src/lab/exp2/Hints1/Hint_2.html
index d17660b7..cf118bd1 100755
--- a/src/lab/exp2/Hints1/Hint_2.html
+++ b/src/lab/exp2/Hints1/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
 int main(){
 -&gt;declare and scan N,
   do check the limits of N
@@ -9,8 +13,8 @@
   variable
 -&gt;sum = 0
   for i=2;i&lt;=n/i;i++
-	  if(N%i==0)
-		  sum+=i+(N/i)
+    if(N%i==0)
+      sum+=i+(N/i)
 -&gt;check if the sum is equal to N
   or not
  
diff --git a/src/lab/exp2/Hints1/Hint_3.html b/src/lab/exp2/Hints1/Hint_3.html
index 9a11eaa9..cd4be3df 100755
--- a/src/lab/exp2/Hints1/Hint_3.html
+++ b/src/lab/exp2/Hints1/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
 -&gt;long long N,sum=0;
@@ -6,8 +10,8 @@
 -&gt;int temp = sqrt(N); 
 -&gt;sum = 0
   for i=2;i&lt;=temp;i++
-	  if(N%i==0)
-		  sum+=i+(N/i)
+    if(N%i==0)
+      sum+=i+(N/i)
 -&gt;check if the sum is equal to N
   or not
  
diff --git a/src/lab/exp2/Hints1/Hint_4.html b/src/lab/exp2/Hints1/Hint_4.html
index 4639d42a..e20399f0 100755
--- a/src/lab/exp2/Hints1/Hint_4.html
+++ b/src/lab/exp2/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int main(){
 	/*perfect number or not*/
diff --git a/src/lab/exp2/Hints1/Hint_5.html b/src/lab/exp2/Hints1/Hint_5.html
index 9501121f..9186342c 100755
--- a/src/lab/exp2/Hints1/Hint_5.html
+++ b/src/lab/exp2/Hints1/Hint_5.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -14,7 +18,7 @@
 	return ans;
 	
 }
-main(){
+int main(){
 	int W;
 	scanf("%d%d",&amp;N,&amp;W);
 
diff --git a/src/lab/exp2/Hints2/Hint_0.html b/src/lab/exp2/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp2/Hints2/Hint_0.html
+++ b/src/lab/exp2/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp2/Hints2/Hint_1.html b/src/lab/exp2/Hints2/Hint_1.html
index 64308392..abd38fe7 100755
--- a/src/lab/exp2/Hints2/Hint_1.html
+++ b/src/lab/exp2/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+<pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan a,b
 -&gt;until a,b are not both 1
   try to reduce them to 1
diff --git a/src/lab/exp2/Hints2/Hint_2.html b/src/lab/exp2/Hints2/Hint_2.html
index 2ee8ec2e..7e3705f0 100755
--- a/src/lab/exp2/Hints2/Hint_2.html
+++ b/src/lab/exp2/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan a,b
 -&gt;
   while a and b are not 1 
diff --git a/src/lab/exp2/Hints2/Hint_3.html b/src/lab/exp2/Hints2/Hint_3.html
index fef86721..97664beb 100755
--- a/src/lab/exp2/Hints2/Hint_3.html
+++ b/src/lab/exp2/Hints2/Hint_3.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan a,b
 -&gt;
   while a and b are not 1 
diff --git a/src/lab/exp2/Hints2/Hint_4.html b/src/lab/exp2/Hints2/Hint_4.html
index 99149435..6e608531 100755
--- a/src/lab/exp2/Hints2/Hint_4.html
+++ b/src/lab/exp2/Hints2/Hint_4.html
@@ -1,14 +1,9 @@
-<<<<<<< HEAD
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
-=======
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+
+</head>
+<body>
+<pre>#include&lt;stdio.h&gt;
 int main(){
->>>>>>> 0b95c818661f7c28501aa53740154e860c468e5a
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number
diff --git a/src/lab/exp2/Hints2/Hint_5.html b/src/lab/exp2/Hints2/Hint_5.html
index f239af7b..cf7136a8 100755
--- a/src/lab/exp2/Hints2/Hint_5.html
+++ b/src/lab/exp2/Hints2/Hint_5.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 	int a,b;
 	scanf("%d%d",&amp;a,&amp;b);
 	/* the positive Rational number

From e0055b1083b20c5526046d3111dd1de899aefe35 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:35:15 +0530
Subject: [PATCH 15/22] updated hint files for the simulations

---
 src/lab/exp3/Hints1/Hint_0.html |  6 +++++-
 src/lab/exp3/Hints1/Hint_1.html |  8 ++++++--
 src/lab/exp3/Hints1/Hint_2.html |  9 +++++++--
 src/lab/exp3/Hints1/Hint_3.html | 10 +++++++---
 src/lab/exp3/Hints1/Hint_4.html |  6 +++++-
 src/lab/exp3/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp3/Hints2/Hint_1.html |  8 ++++++--
 src/lab/exp3/Hints2/Hint_2.html |  8 ++++++--
 src/lab/exp3/Hints2/Hint_3.html |  8 ++++++--
 src/lab/exp3/Hints2/Hint_4.html |  8 ++++++--
 src/lab/exp3/Hints2/Hint_5.html |  8 ++++++--
 11 files changed, 65 insertions(+), 20 deletions(-)

diff --git a/src/lab/exp3/Hints1/Hint_0.html b/src/lab/exp3/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp3/Hints1/Hint_0.html
+++ b/src/lab/exp3/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints1/Hint_1.html b/src/lab/exp3/Hints1/Hint_1.html
index 9bd3faa4..26b3ca8b 100755
--- a/src/lab/exp3/Hints1/Hint_1.html
+++ b/src/lab/exp3/Hints1/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
diff --git a/src/lab/exp3/Hints1/Hint_2.html b/src/lab/exp3/Hints1/Hint_2.html
index b1037486..4ca7e9da 100755
--- a/src/lab/exp3/Hints1/Hint_2.html
+++ b/src/lab/exp3/Hints1/Hint_2.html
@@ -1,5 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>
+    #include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
diff --git a/src/lab/exp3/Hints1/Hint_3.html b/src/lab/exp3/Hints1/Hint_3.html
index 808c1dda..776e8a1e 100755
--- a/src/lab/exp3/Hints1/Hint_3.html
+++ b/src/lab/exp3/Hints1/Hint_3.html
@@ -1,12 +1,16 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
 
 -&gt;Take care of data type of n(parameter) 
   while passing arguments 
 
 int sum_digits(n):
-	return n?(n%10)+sum_digits(n/10):0
+  return n?(n%10)+sum_digits(n/10):0
 
-main(){
+int main(){
 -&gt;declare and scan N, take 
   care of the limits from the problem
   input specification section
diff --git a/src/lab/exp3/Hints1/Hint_4.html b/src/lab/exp3/Hints1/Hint_4.html
index 32abd925..db05c339 100755
--- a/src/lab/exp3/Hints1/Hint_4.html
+++ b/src/lab/exp3/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
 
 int sum_digits(long long n){
diff --git a/src/lab/exp3/Hints2/Hint_0.html b/src/lab/exp3/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp3/Hints2/Hint_0.html
+++ b/src/lab/exp3/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp3/Hints2/Hint_1.html b/src/lab/exp3/Hints2/Hint_1.html
index a8b59a94..78d9f180 100755
--- a/src/lab/exp3/Hints2/Hint_1.html
+++ b/src/lab/exp3/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan the units 
   digit
 -&gt;Declare an array to store the 
diff --git a/src/lab/exp3/Hints2/Hint_2.html b/src/lab/exp3/Hints2/Hint_2.html
index 0b0e074a..d6e8e568 100755
--- a/src/lab/exp3/Hints2/Hint_2.html
+++ b/src/lab/exp3/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan the units 
   digit
 -&gt;Declare an array to store the 
diff --git a/src/lab/exp3/Hints2/Hint_3.html b/src/lab/exp3/Hints2/Hint_3.html
index 24623eaa..98b8f324 100755
--- a/src/lab/exp3/Hints2/Hint_3.html
+++ b/src/lab/exp3/Hints2/Hint_3.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
 -&gt;declare and scan the units 
   digit
 -&gt;Declare an array to store the 
diff --git a/src/lab/exp3/Hints2/Hint_4.html b/src/lab/exp3/Hints2/Hint_4.html
index 0ecd21e8..f9c191de 100755
--- a/src/lab/exp3/Hints2/Hint_4.html
+++ b/src/lab/exp3/Hints2/Hint_4.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
-main(){
+int main(){
   
 	int unit_digit;
 	scanf("%d",&amp;unit_digit);
diff --git a/src/lab/exp3/Hints2/Hint_5.html b/src/lab/exp3/Hints2/Hint_5.html
index 0ecd21e8..f9c191de 100755
--- a/src/lab/exp3/Hints2/Hint_5.html
+++ b/src/lab/exp3/Hints2/Hint_5.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
-main(){
+int main(){
   
 	int unit_digit;
 	scanf("%d",&amp;unit_digit);

From 945724592ae2361d036d0b3ab26a9ade556648fe Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:41:25 +0530
Subject: [PATCH 16/22] updated hint files for the simulations

---
 src/lab/exp4/Hints1/Hint_1.html |  8 ++++++--
 src/lab/exp4/Hints1/Hint_2.html |  8 ++++++--
 src/lab/exp4/Hints1/Hint_3.html |  8 ++++++--
 src/lab/exp4/Hints1/Hint_4.html |  6 +++++-
 src/lab/exp4/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp4/Hints2/Hint_1.html |  8 ++++++--
 src/lab/exp4/Hints2/Hint_2.html |  8 ++++++--
 src/lab/exp4/Hints2/Hint_3.html |  8 ++++++--
 src/lab/exp4/Hints2/Hint_4.html | 12 ++----------
 9 files changed, 48 insertions(+), 24 deletions(-)

diff --git a/src/lab/exp4/Hints1/Hint_1.html b/src/lab/exp4/Hints1/Hint_1.html
index 1137118b..ab7eb2f9 100755
--- a/src/lab/exp4/Hints1/Hint_1.html
+++ b/src/lab/exp4/Hints1/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
+int main(){
 -&gt;declare N and scan N 
 
 -&gt;declare a double variable and initialize
diff --git a/src/lab/exp4/Hints1/Hint_2.html b/src/lab/exp4/Hints1/Hint_2.html
index 464c692f..9483ba39 100755
--- a/src/lab/exp4/Hints1/Hint_2.html
+++ b/src/lab/exp4/Hints1/Hint_2.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
 #include&lt; math.h&gt;
-main(){
+int main(){
 -&gt; declare N and scan N 
 
 -&gt; declare a variable which can store
diff --git a/src/lab/exp4/Hints1/Hint_3.html b/src/lab/exp4/Hints1/Hint_3.html
index ef847479..ce76c28f 100755
--- a/src/lab/exp4/Hints1/Hint_3.html
+++ b/src/lab/exp4/Hints1/Hint_3.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include &lt; stdio.h&gt;
+<html><head>
+      
+</head>
+<body>
+      <pre>#include &lt; stdio.h&gt;
 #include &lt; math.h &gt;
-main(){
+int main(){
 
 -&gt;declare N and scan N 
 
diff --git a/src/lab/exp4/Hints1/Hint_4.html b/src/lab/exp4/Hints1/Hint_4.html
index 2d1857f1..8ffdb4fd 100755
--- a/src/lab/exp4/Hints1/Hint_4.html
+++ b/src/lab/exp4/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include &lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include &lt;stdio.h&gt;
 #include &lt;math.h&gt;
 int main(){
 int N,i;
diff --git a/src/lab/exp4/Hints2/Hint_0.html b/src/lab/exp4/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp4/Hints2/Hint_0.html
+++ b/src/lab/exp4/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp4/Hints2/Hint_1.html b/src/lab/exp4/Hints2/Hint_1.html
index 97e01058..0ffeb4b8 100755
--- a/src/lab/exp4/Hints2/Hint_1.html
+++ b/src/lab/exp4/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;int N
 
 	-&gt;scan N
diff --git a/src/lab/exp4/Hints2/Hint_2.html b/src/lab/exp4/Hints2/Hint_2.html
index bef7e086..97f636c3 100755
--- a/src/lab/exp4/Hints2/Hint_2.html
+++ b/src/lab/exp4/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;int N
 
 	-&gt;scan N
diff --git a/src/lab/exp4/Hints2/Hint_3.html b/src/lab/exp4/Hints2/Hint_3.html
index 2bd3eb2e..eedafb53 100755
--- a/src/lab/exp4/Hints2/Hint_3.html
+++ b/src/lab/exp4/Hints2/Hint_3.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 	 int N;
 
 	 scanf("%d",&amp;N);
diff --git a/src/lab/exp4/Hints2/Hint_4.html b/src/lab/exp4/Hints2/Hint_4.html
index e09b833c..48d600da 100755
--- a/src/lab/exp4/Hints2/Hint_4.html
+++ b/src/lab/exp4/Hints2/Hint_4.html
@@ -1,14 +1,6 @@
-<<<<<<< HEAD
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
-=======
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head></head><body>
+<pre>#include&lt;stdio.h&gt;
 int main(){
->>>>>>> 0b95c818661f7c28501aa53740154e860c468e5a
 	 int N;
 
 	 scanf("%d",&amp;N);

From 4e9d729ae1d820762aebd5e519121112868ec505 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:50:11 +0530
Subject: [PATCH 17/22] updated hint files for the simulations

---
 src/lab/exp5/Hints1/Hint_0.html |  6 +++++-
 src/lab/exp5/Hints1/Hint_1.html |  9 +++++++--
 src/lab/exp5/Hints1/Hint_2.html |  9 +++++++--
 src/lab/exp5/Hints1/Hint_3.html |  9 +++++++--
 src/lab/exp5/Hints1/Hint_4.html |  7 ++++++-
 src/lab/exp5/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp5/Hints2/Hint_1.html |  8 ++++++--
 src/lab/exp5/Hints2/Hint_2.html | 16 ++++++++++------
 src/lab/exp5/Hints2/Hint_3.html | 16 ++++++++++------
 src/lab/exp5/Hints2/Hint_4.html | 14 +++++---------
 10 files changed, 68 insertions(+), 32 deletions(-)

diff --git a/src/lab/exp5/Hints1/Hint_0.html b/src/lab/exp5/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp5/Hints1/Hint_0.html
+++ b/src/lab/exp5/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints1/Hint_1.html b/src/lab/exp5/Hints1/Hint_1.html
index 09dc2de3..aa83a1da 100755
--- a/src/lab/exp5/Hints1/Hint_1.html
+++ b/src/lab/exp5/Hints1/Hint_1.html
@@ -1,11 +1,16 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 
 int isAlphabet(char x){
 }
 
-main(){
+int main(){
 
 -&gt;declare and scan the string
 -&gt;do take care to scan the entire line
diff --git a/src/lab/exp5/Hints1/Hint_2.html b/src/lab/exp5/Hints1/Hint_2.html
index 28d5bd1e..b4c013fa 100755
--- a/src/lab/exp5/Hints1/Hint_2.html
+++ b/src/lab/exp5/Hints1/Hint_2.html
@@ -1,9 +1,14 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
 }
-main(){
+int main(){
 char str[1001];
 gets(str);
 
diff --git a/src/lab/exp5/Hints1/Hint_3.html b/src/lab/exp5/Hints1/Hint_3.html
index 82e4dc21..2888095a 100755
--- a/src/lab/exp5/Hints1/Hint_3.html
+++ b/src/lab/exp5/Hints1/Hint_3.html
@@ -1,9 +1,14 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
 }
-main(){
+int main(){
 char str[1001];
 gets(str);
 int i=0,j=strlen(str)-1;
diff --git a/src/lab/exp5/Hints1/Hint_4.html b/src/lab/exp5/Hints1/Hint_4.html
index fc877ff3..b6aa0049 100755
--- a/src/lab/exp5/Hints1/Hint_4.html
+++ b/src/lab/exp5/Hints1/Hint_4.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+#include&lt;stdlib.h&gt;
 #include&lt;string.h&gt;
 #include&lt;math.h&gt;
 int isAlphabet(char x){
diff --git a/src/lab/exp5/Hints2/Hint_0.html b/src/lab/exp5/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp5/Hints2/Hint_0.html
+++ b/src/lab/exp5/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp5/Hints2/Hint_1.html b/src/lab/exp5/Hints2/Hint_1.html
index 287a1286..88023092 100755
--- a/src/lab/exp5/Hints2/Hint_1.html
+++ b/src/lab/exp5/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
   -&gt;declare two strings
   -&gt;scan them 
   -&gt;check if 2<sup>nd</sup> string
diff --git a/src/lab/exp5/Hints2/Hint_2.html b/src/lab/exp5/Hints2/Hint_2.html
index 8b8d9758..8dd467c6 100755
--- a/src/lab/exp5/Hints2/Hint_2.html
+++ b/src/lab/exp5/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
   -&gt;declare two strings
   -&gt;scan the strings 
 
@@ -7,10 +11,10 @@
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
-		   x[p]=i
-	           p++;
-	   }
+     if(p&lt;n &amp;&amp; str1[i]==str2[p]){
+       x[p]=i
+             p++;
+     }
   -&gt; output the result;
 }
 </pre>
diff --git a/src/lab/exp5/Hints2/Hint_3.html b/src/lab/exp5/Hints2/Hint_3.html
index b0856f88..1d7554b6 100755
--- a/src/lab/exp5/Hints2/Hint_3.html
+++ b/src/lab/exp5/Hints2/Hint_3.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
+int main(){
   -&gt;declare two strings
   -&gt;scan the strings 
 
@@ -7,10 +11,10 @@
    find x[0] , x[1],...,x[n-1] 
 
    for(i=0;i&lt; m;i++)
-	   if(p&lt;n &amp;&amp; str1[i]==str2[p]){
-		   x[p]=i
-	           p++;
-	   }
+     if(p&lt;n &amp;&amp; str1[i]==str2[p]){
+       x[p]=i
+             p++;
+     }
   -&gt; if p==n then yes 
      else no
 }
diff --git a/src/lab/exp5/Hints2/Hint_4.html b/src/lab/exp5/Hints2/Hint_4.html
index 6c85f5ce..e54202a3 100755
--- a/src/lab/exp5/Hints2/Hint_4.html
+++ b/src/lab/exp5/Hints2/Hint_4.html
@@ -1,14 +1,10 @@
 <<<<<<< HEAD
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
-=======
-<html><head><!--Google Tag Manager--><script class="gtm">(function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':
-new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],
-j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src=
-'https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);
-})(window,document,'script','dataLayer','GTM-W59SWTR');</script><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><noscript class="gtm"><iframe height="0" src="https://www.googletagmanager.com/ns.html?id=GTM-W59SWTR" style="display:none;visibility:hidden" width="0"></iframe></noscript><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int main(){
->>>>>>> 0b95c818661f7c28501aa53740154e860c468e5a
 char str1[2000];
 char str2[2000];
 scanf("%s %s",str1,str2);

From cfca94c8692681babe7da00e75aeb18373d0e8b8 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Wed, 15 Dec 2021 19:59:26 +0530
Subject: [PATCH 18/22] updated hint files for the simulations

---
 src/lab/exp6/Hints1/Hint_0.html | 6 +++++-
 src/lab/exp6/Hints1/Hint_1.html | 8 ++++++--
 src/lab/exp6/Hints1/Hint_2.html | 8 ++++++--
 src/lab/exp6/Hints1/Hint_3.html | 8 ++++++--
 src/lab/exp6/Hints1/Hint_4.html | 6 +++++-
 src/lab/exp6/Hints1/Hint_5.html | 8 ++++++--
 src/lab/exp6/Hints2/Hint_0.html | 6 +++++-
 src/lab/exp6/Hints2/Hint_1.html | 8 ++++++--
 src/lab/exp6/Hints2/Hint_2.html | 8 ++++++--
 src/lab/exp6/Hints2/Hint_3.html | 8 ++++++--
 src/lab/exp6/Hints2/Hint_4.html | 4 +++-
 src/lab/exp6/Hints2/Hint_5.html | 8 ++++++--
 12 files changed, 66 insertions(+), 20 deletions(-)

diff --git a/src/lab/exp6/Hints1/Hint_0.html b/src/lab/exp6/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp6/Hints1/Hint_0.html
+++ b/src/lab/exp6/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints1/Hint_1.html b/src/lab/exp6/Hints1/Hint_1.html
index 8e20d9a5..4a8f98a6 100755
--- a/src/lab/exp6/Hints1/Hint_1.html
+++ b/src/lab/exp6/Hints1/Hint_1.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
@@ -9,7 +13,7 @@
 	-&gt;return the total number of solutions
 	
 }
-main(){
+int main(){
 -&gt;scan N,W 
 -&gt;call the recursive function with appropriate
   parameters
diff --git a/src/lab/exp6/Hints1/Hint_2.html b/src/lab/exp6/Hints1/Hint_2.html
index 0e802cd7..4901bba7 100755
--- a/src/lab/exp6/Hints1/Hint_2.html
+++ b/src/lab/exp6/Hints1/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
@@ -11,7 +15,7 @@
 	-&gt;return the total number of solutions
 	
 }
-main(){
+int main(){
 -&gt;scan N,W 
 -&gt;call the recursive function with appropriate
   parameters
diff --git a/src/lab/exp6/Hints1/Hint_3.html b/src/lab/exp6/Hints1/Hint_3.html
index 6f24cb2b..563e1d8f 100755
--- a/src/lab/exp6/Hints1/Hint_3.html
+++ b/src/lab/exp6/Hints1/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int W,int index){
 
 	-&gt;termination conditions
@@ -12,7 +16,7 @@
 	-&gt;return ans
 	
 }
-main(){
+int main(){
 -&gt;scan N,W 
 -&gt;call the recursive function with appropriate
   parameters
diff --git a/src/lab/exp6/Hints1/Hint_4.html b/src/lab/exp6/Hints1/Hint_4.html
index 24738c73..049446a0 100755
--- a/src/lab/exp6/Hints1/Hint_4.html
+++ b/src/lab/exp6/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head><body>
+
+	<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
diff --git a/src/lab/exp6/Hints1/Hint_5.html b/src/lab/exp6/Hints1/Hint_5.html
index 9501121f..9186342c 100755
--- a/src/lab/exp6/Hints1/Hint_5.html
+++ b/src/lab/exp6/Hints1/Hint_5.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int W,int index){
 	
@@ -14,7 +18,7 @@
 	return ans;
 	
 }
-main(){
+int main(){
 	int W;
 	scanf("%d%d",&amp;N,&amp;W);
 
diff --git a/src/lab/exp6/Hints2/Hint_0.html b/src/lab/exp6/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp6/Hints2/Hint_0.html
+++ b/src/lab/exp6/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp6/Hints2/Hint_1.html b/src/lab/exp6/Hints2/Hint_1.html
index f68c14c5..4970826b 100755
--- a/src/lab/exp6/Hints2/Hint_1.html
+++ b/src/lab/exp6/Hints2/Hint_1.html
@@ -1,10 +1,14 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int isPossible(int N,int D,int *weight)
 	-&gt; Trivial/termination cases handled first
 	   like when N=0 or D=0
 	-&gt;try all possibilities with the given weight
 	  weight[N-1] 
-main(){
+int main(){
 	-&gt;scan N and weights and call isPossible
 	  function
 }
diff --git a/src/lab/exp6/Hints2/Hint_2.html b/src/lab/exp6/Hints2/Hint_2.html
index 31bc3d8e..004cb283 100755
--- a/src/lab/exp6/Hints2/Hint_2.html
+++ b/src/lab/exp6/Hints2/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
@@ -13,7 +17,7 @@
 	           -&gt;isPossible(N-1,D,weight)
 }
 
-main(){
+int main(){
 	-&gt;scan N and weights and call isPossible
 	  function
 }
diff --git a/src/lab/exp6/Hints2/Hint_3.html b/src/lab/exp6/Hints2/Hint_3.html
index 50c29616..96f10129 100755
--- a/src/lab/exp6/Hints2/Hint_3.html
+++ b/src/lab/exp6/Hints2/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
 -&gt;Assume a weight of D on right PAN
 int isPossible(int N,int D,int *weight){
@@ -7,7 +11,7 @@
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight)
 }
 
-main(){
+int main(){
 	-&gt;scan N and weights and call isPossible
 	  function
 }
diff --git a/src/lab/exp6/Hints2/Hint_4.html b/src/lab/exp6/Hints2/Hint_4.html
index 8727100e..b885808f 100755
--- a/src/lab/exp6/Hints2/Hint_4.html
+++ b/src/lab/exp6/Hints2/Hint_4.html
@@ -1,4 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head></head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
diff --git a/src/lab/exp6/Hints2/Hint_5.html b/src/lab/exp6/Hints2/Hint_5.html
index 9c85906a..a668e93b 100755
--- a/src/lab/exp6/Hints2/Hint_5.html
+++ b/src/lab/exp6/Hints2/Hint_5.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 
 int isPossible(int N,int D,int *weight){
 	if(!N)
@@ -6,7 +10,7 @@
   	return isPossible(N-1,D+weight[N-1],weight)||isPossible(N-1,D-weight[N-1],weight)||isPossible(N-1,D,weight);
 }
 
-main(){
+int main(){
 	int N;
 	scanf("%d",&amp;N);
 	int weights[N],i,D;

From 61c3246593b62a4747c14ba4fe65701b687df12d Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Thu, 16 Dec 2021 11:52:59 +0530
Subject: [PATCH 19/22] updated all the hints

---
 src/lab/exp7/Hints1/Hint_0.html | 6 +++++-
 src/lab/exp7/Hints1/Hint_1.html | 8 ++++++--
 src/lab/exp7/Hints1/Hint_2.html | 8 ++++++--
 src/lab/exp7/Hints1/Hint_3.html | 8 ++++++--
 src/lab/exp7/Hints1/Hint_4.html | 8 +++++++-
 src/lab/exp7/Hints2/Hint_0.html | 6 +++++-
 src/lab/exp7/Hints2/Hint_1.html | 8 ++++++--
 src/lab/exp7/Hints2/Hint_2.html | 8 ++++++--
 src/lab/exp7/Hints2/Hint_3.html | 8 ++++++--
 src/lab/exp7/Hints2/Hint_4.html | 6 +++++-
 10 files changed, 58 insertions(+), 16 deletions(-)

diff --git a/src/lab/exp7/Hints1/Hint_0.html b/src/lab/exp7/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp7/Hints1/Hint_0.html
+++ b/src/lab/exp7/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints1/Hint_1.html b/src/lab/exp7/Hints1/Hint_1.html
index f6f6d500..5de65884 100755
--- a/src/lab/exp7/Hints1/Hint_1.html
+++ b/src/lab/exp7/Hints1/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 	-&gt;scan the two integers
 	    in the form of the strings
 	-&gt;traverse over the strings 
diff --git a/src/lab/exp7/Hints1/Hint_2.html b/src/lab/exp7/Hints1/Hint_2.html
index f5e1a765..6b83de73 100755
--- a/src/lab/exp7/Hints1/Hint_2.html
+++ b/src/lab/exp7/Hints1/Hint_2.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
 
-main(){
+int main(){
 
 -&gt;scan the input strings
 -&gt;declare the output string
diff --git a/src/lab/exp7/Hints1/Hint_3.html b/src/lab/exp7/Hints1/Hint_3.html
index de713ba0..052c49aa 100755
--- a/src/lab/exp7/Hints1/Hint_3.html
+++ b/src/lab/exp7/Hints1/Hint_3.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
 
-main(){
+int main(){
 
 -&gt;scan the input strings
 -&gt;declare the output string
diff --git a/src/lab/exp7/Hints1/Hint_4.html b/src/lab/exp7/Hints1/Hint_4.html
index 62888bf1..9a7a98cd 100755
--- a/src/lab/exp7/Hints1/Hint_4.html
+++ b/src/lab/exp7/Hints1/Hint_4.html
@@ -1,4 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+
+</head>
+<body>
+
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 int main(){
 	char s1[51],s2[51];
diff --git a/src/lab/exp7/Hints2/Hint_0.html b/src/lab/exp7/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp7/Hints2/Hint_0.html
+++ b/src/lab/exp7/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp7/Hints2/Hint_1.html b/src/lab/exp7/Hints2/Hint_1.html
index d52aeab4..9cec81f5 100755
--- a/src/lab/exp7/Hints2/Hint_1.html
+++ b/src/lab/exp7/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;scan the input
 	-&gt;The square root must 
 	  be in the range [1 N]
diff --git a/src/lab/exp7/Hints2/Hint_2.html b/src/lab/exp7/Hints2/Hint_2.html
index fd85cb1a..41d6fa86 100755
--- a/src/lab/exp7/Hints2/Hint_2.html
+++ b/src/lab/exp7/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;scan the input
 	-&gt;The square root must 
 	  be in the range [1 N]
diff --git a/src/lab/exp7/Hints2/Hint_3.html b/src/lab/exp7/Hints2/Hint_3.html
index 3aea8a90..bb9f713a 100755
--- a/src/lab/exp7/Hints2/Hint_3.html
+++ b/src/lab/exp7/Hints2/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt; stdio.h&gt;
 int N;
 double search(double start,double end){
 	
@@ -12,7 +16,7 @@
 		return search(mid+1,end);
 
 }
-main(){
+int main(){
 
 }
 	
diff --git a/src/lab/exp7/Hints2/Hint_4.html b/src/lab/exp7/Hints2/Hint_4.html
index 5075f5f9..0f9af746 100755
--- a/src/lab/exp7/Hints2/Hint_4.html
+++ b/src/lab/exp7/Hints2/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;math.h&gt;
 int N;
 double mysqrt(double start,double end){

From b58adc96211d6ec9b519c2400d9bbe0d742a8c85 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Thu, 16 Dec 2021 12:02:31 +0530
Subject: [PATCH 20/22] updated all the hints

---
 src/lab/exp8/Hints1/Hint_0.html | 6 +++++-
 src/lab/exp8/Hints1/Hint_1.html | 8 ++++++--
 src/lab/exp8/Hints1/Hint_2.html | 8 ++++++--
 src/lab/exp8/Hints1/Hint_3.html | 8 ++++++--
 src/lab/exp8/Hints1/Hint_4.html | 6 +++++-
 src/lab/exp8/Hints2/Hint_0.html | 6 +++++-
 src/lab/exp8/Hints2/Hint_1.html | 8 ++++++--
 src/lab/exp8/Hints2/Hint_2.html | 8 ++++++--
 src/lab/exp8/Hints2/Hint_3.html | 8 ++++++--
 src/lab/exp8/Hints2/Hint_4.html | 6 +++++-
 10 files changed, 56 insertions(+), 16 deletions(-)

diff --git a/src/lab/exp8/Hints1/Hint_0.html b/src/lab/exp8/Hints1/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp8/Hints1/Hint_0.html
+++ b/src/lab/exp8/Hints1/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints1/Hint_1.html b/src/lab/exp8/Hints1/Hint_1.html
index 61ff1240..06874aee 100755
--- a/src/lab/exp8/Hints1/Hint_1.html
+++ b/src/lab/exp8/Hints1/Hint_1.html
@@ -1,6 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
-main(){
+int main(){
 	-&gt;declare and scan N
 	-&gt;declare and scan the array
 	-&gt;sort the array
diff --git a/src/lab/exp8/Hints1/Hint_2.html b/src/lab/exp8/Hints1/Hint_2.html
index 99ccf521..056761b0 100755
--- a/src/lab/exp8/Hints1/Hint_2.html
+++ b/src/lab/exp8/Hints1/Hint_2.html
@@ -1,9 +1,13 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 
 }
-main(){
+int main(){
 	-&gt;declare and scan N
 	-&gt;declare and scan the array
 	-&gt;sort the array
diff --git a/src/lab/exp8/Hints1/Hint_3.html b/src/lab/exp8/Hints1/Hint_3.html
index 9abb5856..b874b959 100755
--- a/src/lab/exp8/Hints1/Hint_3.html
+++ b/src/lab/exp8/Hints1/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int search(int *arr,int start,int end,int num){
 	-&gt;termination condition
@@ -8,7 +12,7 @@
 	else
 		return search(arr,mid+1,end,num);
 }
-main(){
+int main(){
 	-&gt;declare and scan N
 	-&gt;declare and scan the array
 	-&gt;sort the array
diff --git a/src/lab/exp8/Hints1/Hint_4.html b/src/lab/exp8/Hints1/Hint_4.html
index 3272a9ca..fe539c2d 100755
--- a/src/lab/exp8/Hints1/Hint_4.html
+++ b/src/lab/exp8/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;stdlib.h&gt;
 int compare(const void *a,const void *b){
 	return *((int *)a)&gt;*((int *)b);
diff --git a/src/lab/exp8/Hints2/Hint_0.html b/src/lab/exp8/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp8/Hints2/Hint_0.html
+++ b/src/lab/exp8/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp8/Hints2/Hint_1.html b/src/lab/exp8/Hints2/Hint_1.html
index 14093a6b..4aa9bba0 100755
--- a/src/lab/exp8/Hints2/Hint_1.html
+++ b/src/lab/exp8/Hints2/Hint_1.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
+int main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
 	   -&gt;update the position array
diff --git a/src/lab/exp8/Hints2/Hint_2.html b/src/lab/exp8/Hints2/Hint_2.html
index 46f79f94..3795b50f 100755
--- a/src/lab/exp8/Hints2/Hint_2.html
+++ b/src/lab/exp8/Hints2/Hint_2.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+		
+</head>
+<body>
+<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
diff --git a/src/lab/exp8/Hints2/Hint_3.html b/src/lab/exp8/Hints2/Hint_3.html
index cae45253..455d0d46 100755
--- a/src/lab/exp8/Hints2/Hint_3.html
+++ b/src/lab/exp8/Hints2/Hint_3.html
@@ -1,5 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt; stdio.h&gt;
-main(){
+<html><head>
+	
+</head>
+<body>
+<pre>#include&lt; stdio.h&gt;
+int main(){
 	-&gt;scan the input
 	-&gt;for each index in the string
 		for(j=0;j&lt; N;j++)   
diff --git a/src/lab/exp8/Hints2/Hint_4.html b/src/lab/exp8/Hints2/Hint_4.html
index 0673b998..9b16c20e 100755
--- a/src/lab/exp8/Hints2/Hint_4.html
+++ b/src/lab/exp8/Hints2/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 #include&lt;string.h&gt;
 
 int main(){

From 433b1290a5831858d7d079e4d9b7ee389b3e3cec Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Thu, 16 Dec 2021 15:21:50 +0530
Subject: [PATCH 21/22] updated all the hints

---
 src/lab/exp9/Hints1/Hint_0.html | 11 ++++++++++-
 src/lab/exp9/Hints1/Hint_1.html |  9 +++++++--
 src/lab/exp9/Hints1/Hint_2.html | 14 +++++++++-----
 src/lab/exp9/Hints1/Hint_3.html |  9 +++++++--
 src/lab/exp9/Hints1/Hint_4.html |  6 +++++-
 src/lab/exp9/Hints2/Hint_0.html |  6 +++++-
 src/lab/exp9/Hints2/Hint_1.html |  8 ++++++--
 src/lab/exp9/Hints2/Hint_2.html |  8 ++++++--
 src/lab/exp9/Hints2/Hint_3.html |  8 ++++++--
 src/lab/exp9/Hints2/Hint_4.html |  6 +++++-
 10 files changed, 66 insertions(+), 19 deletions(-)

diff --git a/src/lab/exp9/Hints1/Hint_0.html b/src/lab/exp9/Hints1/Hint_0.html
index a93a4aa0..c61f7c74 100755
--- a/src/lab/exp9/Hints1/Hint_0.html
+++ b/src/lab/exp9/Hints1/Hint_0.html
@@ -1 +1,10 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--></body></html>
\ No newline at end of file
+<html><head>
+	
+</head>
+<body>
+
+<pre>
+	
+	
+</pre>
+</body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints1/Hint_1.html b/src/lab/exp9/Hints1/Hint_1.html
index 98bb7bdf..f69728fd 100755
--- a/src/lab/exp9/Hints1/Hint_1.html
+++ b/src/lab/exp9/Hints1/Hint_1.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+
+  <pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
@@ -9,7 +14,7 @@
 -&gt;recursive calls
 }
 
-main(){
+int main(){
 -&gt;scan the input
 -&gt;call the function with 
   appropriate parameters
diff --git a/src/lab/exp9/Hints1/Hint_2.html b/src/lab/exp9/Hints1/Hint_2.html
index d0cc089c..c3cee619 100755
--- a/src/lab/exp9/Hints1/Hint_2.html
+++ b/src/lab/exp9/Hints1/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+  
+</head>
+<body>
+  <pre>#include&lt;stdio.h&gt;
 
 int func(int N,int *weight,int S)
 {
@@ -8,9 +12,9 @@
 -&gt;Handle termination cases
 
 -&gt;option1. Donot keep weight[N-1] in basket
-	which means we need to attain 
-	S from the next N-1 weights 
-	so call func(N-1,weight,S);
+  which means we need to attain 
+  S from the next N-1 weights 
+  so call func(N-1,weight,S);
 -&gt;option2. keep weight[N-1] in basket 
   which means we need to attain
   S-weight[N-1] next N-1 weights
@@ -19,7 +23,7 @@
 return the sum of the above solutions
 }
 
-main(){
+int main(){
 -&gt;scan the input
 -&gt;call the function with 
   appropriate parameters
diff --git a/src/lab/exp9/Hints1/Hint_3.html b/src/lab/exp9/Hints1/Hint_3.html
index c9e7ecae..6979de9e 100755
--- a/src/lab/exp9/Hints1/Hint_3.html
+++ b/src/lab/exp9/Hints1/Hint_3.html
@@ -1,4 +1,9 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+
+	<pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S)
 {
 
@@ -12,7 +17,7 @@
 	return func(N-1,weight,S-weight[N-1])+func(N-1,weight,S); 
 }
 
-main(){
+int main(){
 -&gt;scan the input
 -&gt;call the function with 
   appropriate parameters
diff --git a/src/lab/exp9/Hints1/Hint_4.html b/src/lab/exp9/Hints1/Hint_4.html
index 0270cb79..0d84a329 100755
--- a/src/lab/exp9/Hints1/Hint_4.html
+++ b/src/lab/exp9/Hints1/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int func(int N,int *weight,int S){
 	if(!S)// If target weight has been achieved, we have found a solution.
 		return 1;
diff --git a/src/lab/exp9/Hints2/Hint_0.html b/src/lab/exp9/Hints2/Hint_0.html
index 2de51afa..824a20ef 100755
--- a/src/lab/exp9/Hints2/Hint_0.html
+++ b/src/lab/exp9/Hints2/Hint_0.html
@@ -1,2 +1,6 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre></pre>
+<html><head>
+	
+</head>
+<body>
+	<pre></pre>
 </body></html>
\ No newline at end of file
diff --git a/src/lab/exp9/Hints2/Hint_1.html b/src/lab/exp9/Hints2/Hint_1.html
index 7be2bbd1..8cbb5450 100755
--- a/src/lab/exp9/Hints2/Hint_1.html
+++ b/src/lab/exp9/Hints2/Hint_1.html
@@ -1,8 +1,12 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight){
 
 }
-main(){
+int main(){
 -&gt;declare N and scan N weights 
 -&gt; for each weight in input find in how 
    many ways can you achieve it
diff --git a/src/lab/exp9/Hints2/Hint_2.html b/src/lab/exp9/Hints2/Hint_2.html
index f1e165e4..f8b58d63 100755
--- a/src/lab/exp9/Hints2/Hint_2.html
+++ b/src/lab/exp9/Hints2/Hint_2.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 	if(index==index_needed_achieved)
@@ -12,7 +16,7 @@
 	and do a recursive with the corresponding 
 	paramters
 }
-main(){
+int main(){
 -&gt;declare N and scan N weights 
 -&gt; for each weight in input find in how 
    many ways can you achieve it
diff --git a/src/lab/exp9/Hints2/Hint_3.html b/src/lab/exp9/Hints2/Hint_3.html
index c18fb621..bf4b5b3d 100755
--- a/src/lab/exp9/Hints2/Hint_3.html
+++ b/src/lab/exp9/Hints2/Hint_3.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int no_ways(int index,int index_needed_achieved,int *weight,int curr_sum){
 
 -&gt;termination 
@@ -19,7 +23,7 @@
 	paramters
 	-&gt;no_ways(index+1,index_needed_achieved,weights,curr_sum);
 }
-main(){
+int main(){
 -&gt;declare N and scan N weights 
 -&gt; for each weight in input find in how 
    many ways can you achieve it
diff --git a/src/lab/exp9/Hints2/Hint_4.html b/src/lab/exp9/Hints2/Hint_4.html
index 489d6f33..9429cae7 100755
--- a/src/lab/exp9/Hints2/Hint_4.html
+++ b/src/lab/exp9/Hints2/Hint_4.html
@@ -1,4 +1,8 @@
-<html><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager--></head><body><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><!--Google Tag Manager (noscript)--><!--End Google Tag Manager (noscript)--><pre>#include&lt;stdio.h&gt;
+<html><head>
+	
+</head>
+<body>
+	<pre>#include&lt;stdio.h&gt;
 int N;
 int no_ways(int index,int index_needed_achieved,int *weights,int curr_sum){
 

From 75acc6a876a6010444f7bf3cf0ca2fd48e1a2db2 Mon Sep 17 00:00:00 2001
From: sravanthimodepu <sravanthimodepu@gmail.com>
Date: Fri, 17 Dec 2021 16:15:44 +0530
Subject: [PATCH 22/22] fixed broken links in all the pages

---
 src/lab/Courses Aligned.html        |  6 +++---
 src/lab/Feedback.html               |  6 +++---
 src/lab/Introduction.html           |  6 +++---
 src/lab/List of experiments.html    |  6 +++---
 src/lab/Target Audience.html        |  6 +++---
 src/lab/exp1/Experiment.html        |  2 +-
 src/lab/exp1/Feedback.html          |  2 +-
 src/lab/exp1/Further Readings.html  |  2 +-
 src/lab/exp1/Introduction.html      |  2 +-
 src/lab/exp1/Manual.html            |  2 +-
 src/lab/exp1/Objective.html         |  2 +-
 src/lab/exp1/Procedure.html         |  2 +-
 src/lab/exp1/Quiz.html              | 10 +---------
 src/lab/exp1/Theory.html            |  2 +-
 src/lab/exp10/Experiment.html       |  2 +-
 src/lab/exp10/Feedback.html         |  2 +-
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 src/lab/exp7/Further Readings.html  |  4 ++--
 src/lab/exp7/Introduction.html      |  8 ++------
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 src/lab/exp7/Procedure.html         |  2 +-
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 95 files changed, 109 insertions(+), 127 deletions(-)

diff --git a/src/lab/Courses Aligned.html b/src/lab/Courses Aligned.html
index 46f4669d..ac8f7fc1 100644
--- a/src/lab/Courses Aligned.html	
+++ b/src/lab/Courses Aligned.html	
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
 
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2">
 						<!--edit1-->
-						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;">Courses Aligned</h3></a><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>				
+						</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/Feedback.html b/src/lab/Feedback.html
index 8c95a8fe..7a5681fe 100644
--- a/src/lab/Feedback.html
+++ b/src/lab/Feedback.html
@@ -88,13 +88,13 @@
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 			<div class="container-fluid" style="margin-left: 35px; margin-right: 35px;">
 
-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br></h2>
 					
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+						<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Courses Aligned</h3></a><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;">Feedback</h3></a>
+					</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/Introduction.html b/src/lab/Introduction.html
index 83ae9ee9..c0d27d76 100644
--- a/src/lab/Introduction.html
+++ b/src/lab/Introduction.html
@@ -88,13 +88,13 @@
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br></h2>
 					
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+						
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important; ">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
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diff --git a/src/lab/List of experiments.html b/src/lab/List of experiments.html
index 5e6b4e78..51e50325 100644
--- a/src/lab/List of experiments.html	
+++ b/src/lab/List of experiments.html	
@@ -88,13 +88,13 @@
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br></h2>
 					
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+						
+<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
 						
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diff --git a/src/lab/Target Audience.html b/src/lab/Target Audience.html
index a41571d6..2732bf08 100644
--- a/src/lab/Target Audience.html	
+++ b/src/lab/Target Audience.html	
@@ -88,13 +88,13 @@
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a><br></h2>
 					
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-<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><!-- <a href="Prerequisites.html?domain=Computer Science" class="sidebar-a" > <h3 class="text-h3-darkblue" style="margin-top: 2px;">Prerequisites</h3></a> --><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>						</div>
+						<a class="sidebar-a" href="Introduction.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px; ">Introduction</h3></a><a class="sidebar-a" href="List of experiments.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">List of Experiments</h3></a><a class="sidebar-a" href="Target Audience.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2pxcolor: #ff6600 !important;">Target Audience</h3></a><a class="sidebar-a" href="Courses Aligned.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Courses Aligned</h3></a><a class="sidebar-a" href="Feedback.html?domain=Computer Science"> <h3 class="text-h3-darkblue" style="margin-top: 2px;">Feedback</h3></a>				
+							</div>
 						
 						<div class="col-md-10 lab-list-col-10">
 							
diff --git a/src/lab/exp1/Experiment.html b/src/lab/exp1/Experiment.html
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@@ -88,7 +88,7 @@
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Feedback.html b/src/lab/exp1/Feedback.html
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp1/Further Readings.html b/src/lab/exp1/Further Readings.html
index 9160539c..ab36c064 100644
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@@ -86,7 +86,7 @@
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Introduction.html b/src/lab/exp1/Introduction.html
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@@ -88,7 +88,7 @@
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Manual.html b/src/lab/exp1/Manual.html
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Objective.html b/src/lab/exp1/Objective.html
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="v">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Procedure.html b/src/lab/exp1/Procedure.html
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-				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="http://vlab.co.in/computer-science-and-engineering-labs.html">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp1/Theory.html b/src/lab/exp1/Theory.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Experiment.html b/src/lab/exp10/Experiment.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Feedback.html b/src/lab/exp10/Feedback.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp10/Procedure.html b/src/lab/exp10/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Experiment.html b/src/lab/exp2/Experiment.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Feedback.html b/src/lab/exp2/Feedback.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Further Readings.html b/src/lab/exp2/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Manual.html b/src/lab/exp2/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp2/Procedure.html b/src/lab/exp2/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp3/Experiment.html b/src/lab/exp3/Experiment.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Feedback.html b/src/lab/exp3/Feedback.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
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diff --git a/src/lab/exp3/Further Readings.html b/src/lab/exp3/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Introduction.html b/src/lab/exp3/Introduction.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
 					<div class="row">
 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp3/Procedure.html b/src/lab/exp3/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Feedback.html b/src/lab/exp4/Feedback.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Further Readings.html b/src/lab/exp4/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp4/Procedure.html b/src/lab/exp4/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp5/Feedback.html b/src/lab/exp5/Feedback.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Further Readings.html b/src/lab/exp5/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Introduction.html b/src/lab/exp5/Introduction.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Procedure.html b/src/lab/exp5/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp5/Quiz.html b/src/lab/exp5/Quiz.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Further Readings.html b/src/lab/exp6/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Introduction.html b/src/lab/exp6/Introduction.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
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diff --git a/src/lab/exp6/Manual.html b/src/lab/exp6/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Procedure.html b/src/lab/exp6/Procedure.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Quiz.html b/src/lab/exp6/Quiz.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp6/Theory.html b/src/lab/exp6/Theory.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Experiment.html b/src/lab/exp7/Experiment.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Further Readings.html b/src/lab/exp7/Further Readings.html
index 47b08a22..601164fb 100644
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@@ -1,4 +1,4 @@
-<!DOCTYPE html><html lang="en"><head><!--Google Tag Manager--><!--End Google Tag Manager--><!--Google Tag Manager--><!--End Google Tag Manager-->
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp7/Introduction.html b/src/lab/exp7/Introduction.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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@@ -96,13 +96,9 @@ <h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><
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-<h1 class="text-h2-lightblue">Advanced Arithmatic</h1><div class="content" id="experiment-article-section-1-content">
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 <h1 class="text-h2-lightblue">Advanced Arithmetic</h1><div class="content" id="experiment-article-section-1-content">
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->>>>>>> 0b95c818661f7c28501aa53740154e860c468e5a
 <p> 
 Let us consider the task of representing very large numbers in C. As we know we cannot store an intger of maximum value 2<sup>63</sup>-1 and minimum value -2<sup>63 </sup>sing a long long data type in C. But how do we represent numbers which are not in this range, say for example 10<sup>50</sup>.In one of the problems we ask you to do this and explain how it is done usually.
 </p>
diff --git a/src/lab/exp7/Manual.html b/src/lab/exp7/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Further Readings.html b/src/lab/exp8/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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->>>>>>> 0b95c818661f7c28501aa53740154e860c468e5a
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diff --git a/src/lab/exp8/Objective.html b/src/lab/exp8/Objective.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp8/Theory.html b/src/lab/exp8/Theory.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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 						<div class="col-md-2 sidebar-col-2"><a class="sidebar-a" href="Introduction.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Introduction </h3> </a><a class="sidebar-a" href="Theory.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Theory </h3> </a><a class="sidebar-a" href="Objective.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Objective </h3> </a><a class="sidebar-a" href="Manual.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Manual </h3> </a><a class="sidebar-a" href="Experiment.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Experiment </h3> </a><a class="sidebar-a" href="Quiz.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px;"> Quiz </h3> </a><a class="sidebar-a" href="Feedback.html?domain=Computer Science&amp;lab=Problem Solving Lab"> <h3 class="text-h3-darkblue" style="margin-top: 2px; color: #ff6600 !important;"> Feedback </h3> </a></div>
diff --git a/src/lab/exp9/Further Readings.html b/src/lab/exp9/Further Readings.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Introduction.html b/src/lab/exp9/Introduction.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Manual.html b/src/lab/exp9/Manual.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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diff --git a/src/lab/exp9/Quiz.html b/src/lab/exp9/Quiz.html
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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+				<h2 class="text-h2-lightblue" style=" margin-bottom: 20px; margin-top: 10px; "><a class="sidebar-a" href="https://www.vlab.co.in/broad-area-computer-science-and-engineering">Computer Science &amp; Engineering</a> →<a class="sidebar-a" href="../Introduction.html">Problem Solving Lab</a>&nbsp;→<a class="sidebar-a" href="../List of experiments.html">List Of Experiments</a><br></h2>
 					
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